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Friday, April 13, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingNAB2012TipsTraining

Lighting Fire and Liquids: Playtime with the Sony FS700

Art Adams | 04/13

Water, ice, fire and a prototype Sony FS700 slow motion camera. What could POSSIBLY go wrong?

Monday, April 09, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingNAB2012TipsTraining

LED Light Tests: Flesh Tone and Color Comparison Shootout

Art Adams | 04/09

There’s one color that will always bother us if it’s wrong: flesh tone. We tested ten common LED lights against a tungsten Inkie and a Kino Flo… come see the results!

Friday, April 06, 2012

Filed under: CamerasGentryMedia Sister SitesProPhoto CoalitionProVideo CoalitionLightingProductionTipsTraining

BEHIND THE SCENES: Smoke in the Woods with the Canon 5D

Art Adams | 04/06

Where there’s smoke there’s fire… or a production company shooting a PSA for a non-profit. This is how you create a high-end look on a budget.

Monday, April 02, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingNAB2012ProductionTipsTraining

LED Light Tests: PRG Sponsors an LED Light Shootout

Art Adams | 04/02

A dozen lights, an Arri Alexa, an intrepid crew… what could go wrong? Lots, which is why we had to work extra hard. Tests are never easy, and comparison tests are among the hardest of all.

Friday, March 30, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionNAB2012ProductionTipsTraining

CANON C300: Trimming White Balance, Plus a Look at Daylight vs. Tungsten Color

Art Adams | 03/30

Cameras used to be SOOOO boring. Now every new camera is a mystery to be unfolded: What does it do well? What tweaks can make it better? Here is my first C300 article that addresses these questions…

Wednesday, March 28, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionProductionTipsTraining

CAMERAS: Now It’s Rocket Science

Art Adams | 03/28

It used to be so simple: pick a film stock, pick a lens, shoot images, process and print, repeat. It wasn’t rocket science. Now, though… it’s rocket science.

Monday, March 26, 2012

Filed under: CamerasGentryMedia Sister SitesHDSLRProPhoto CoalitionProVideo CoalitionLightingProductionTipsTrainingVisual Effects

Lights, Camera, Kids: Shooting a Childish Spot for T-Mobile on the Canon 5D

Art Adams | 03/26

“Just for the web” is no reason to skimp on a project’s look. A few simple tricks made this web spot shine.

Tuesday, March 06, 2012

Filed under: GentryMedia Sister SitesProVideo CoalitionNAB2012Post ProductionProductionTrainingVendor ChannelsSony

GEEK OUT: The Non-Technical Technical Guide to Sony OLED Monitors

Art Adams | 03/06

OLED monitors are about to change the way we view images, both at work and at home. Prepare to look better than you ever have before.

Sunday, January 29, 2012

Filed under: GentryMedia Sister SitesProVideo Coalition

LIGHTING STRATEGIES: Rough Guide to Illuminating a Bounce Card

Art Adams | 01/29

Lighting a bounce card is easy, right? Right… IF you know the basics. Here they are.

Saturday, January 28, 2012

Filed under: GentryMedia Sister SitesProPhoto CoalitionProVideo CoalitionLightingProductionTipsTraining

LIGHTING STRATEGIES: Exploiting a Single Light Source

Art Adams | 01/28

Sometimes all it takes to make a beautiful picture is placing one light—as long as it’s the proper light source. This still photo shows an example of one style of soft lighting that’s been in use for centuries, and for good reason: it works.

Friday, January 20, 2012

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingTipsTraining

BOOK REVIEW: “How to Shoot Movies Without Shooting Yourself in the Foot”

Art Adams | 01/20

The best books about cinematography aren’t necessarily about the art of cinematography. They’re about getting all the other stuff out of the way so you can practice cinematography. This is the book that tells you what you didn’t know—but need to know—about becoming a cinematographer.

Tuesday, January 17, 2012

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

LIGHTING STRATEGIES: Placing the Fill Light for Faces

Art Adams | 01/17

Placing a fill light properly is possibly more important than placing a key light… and I can prove it!

Tuesday, December 27, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

LIGHTING STRATEGIES: What Makes Soft Lights Cast Soft Shadows?

Art Adams | 12/27

When it comes to soft light, size matters.

Friday, December 23, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionProductionTips

For You, a Panel Discussion

Art Adams | 12/23

Take a break from reading and listen to us for a change: PVC writers speak at the 2011 Entertainment Technology Expo in Burbank.

Wednesday, December 21, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingTipsTraining

LIGHTING STRATEGIES: Soft Light vs. Hard Light

Art Adams | 12/21

Hard lights are great for textures, but soft lights are great for defining spaces.

Thursday, December 15, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTips

Pulse Width Modulation is NOT Your Friend

Art Adams | 12/15

What you don’t know about PWM may ruin your next shot—particularly if you’re using a camera with a rolling shutter!

Click to play audio / video »
Tuesday, December 13, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

LIGHTING STRATEGIES: Placing a Hard Key Light

Art Adams | 12/13

Hard light and faces… do they go together? The short answer is yes… but be careful!

Thursday, November 17, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

The Simplest, Fastest Interview Lighting Setup—Ever.

Art Adams | 11/17

Years in the making, this technique works in almost every situation and makes almost everyone look great. That’s about the best you can hope for when shooting talking heads on a tight schedule.

Monday, October 31, 2011

Filed under: GentryMedia Sister SitesProVideo Coalition

The Future of Technology is You

Art Adams | 10/31

New toys are great, but what’s more important is who plays with them.

Tuesday, September 27, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

Fill Light: The Underdog of Lighting

Art Adams | 09/27

Fill light isn’t just for controlling contrast; its quality and placement can make or break your shot.

Monday, September 19, 2011

Filed under: CamerascompressionDistributionGentryMedia Sister SitesHDSLRProPhoto CoalitionProVideo CoalitionLightingProductionSoftwareTips

Blue Nile Shines Thanks to the Canon 5D and Apple Color

Art Adams | 09/19

One more chapter in my “It’s not the camera, it’s the creativity behind the camera” series.

Wednesday, July 13, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTraining

You’ve read my writing, now hear my talking

Art Adams | 07/13

Yup, I got interviewed. If you have an hour to spare, here’s where to find it.

Sunday, June 19, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTrainingWeb Video

Anatomy of a Spot: T-Mobile

Art Adams | 06/19

What’s the best camera to use when shooting in an elevator? A small one. Hellooooo Canon 5D…

Friday, June 17, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionPost ProductionProductionTipsTraining

DSC Labs Hawk Chart: The Simplest Color Chart That You Can’t Live Without

Art Adams | 06/17

Wouldn’t it be great if someone designed an easy-to-use color chart that could be quickly and easily used in the field? Well, someone did. And they call it The Hawk.

Saturday, June 11, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionLightingProductionTipsTrainingVisual Effects

Arri Alexa and Rosco LitePads Come Through for OnLive’s First National Spot

Art Adams | 06/11

The project started out as a web-only teaser. When the client saw it they added another shoot day and turned it into a national spot. Here’s why, and how.

Tuesday, April 19, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionNAB 2011TipsTraining

The Secrets of the Chroma Du Monde, Explained Live (on tape) at NAB!

Art Adams | 04/19

If you’ve always wanted to find out if I present on video as well as I write… click here to find out!

Click to play audio / video »
Monday, April 18, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionProductionTipsTraining

A Mix of Film and HD Doesn’t Scare Arri’s Alexa

Art Adams | 04/18

Friday, April 08, 2011

Filed under: GentryMedia Sister SitesProVideo Coalition

Where I’ll Be at NAB

Art Adams | 04/08

In case you want to play “meet the troublemaker,” here’s how to find me.

Monday, February 28, 2011

Filed under: GentryMedia Sister SitesProVideo CoalitionPost ProductionProductionTipsTraining

The Secret Art of Slating: 25 Tips to Help You Slate Like a Pro

Art Adams | 02/28

Take these to heart and become the editor’s best friend.

Friday, February 18, 2011

Filed under: CamerasGentryMedia Sister SitesApps4PhonesProVideo CoalitionLightingMobile DevicesPre-ProductionProductionSoftwareTips

iPhone Apps: The Short List for the Average Cinematographer

Art Adams | 02/18

Of all the apps I’ve found, these are the most helpful.

Tuesday, February 08, 2011

Filed under: CamerasGentryMedia Sister SitesProVideo CoalitionProductionTipsTraining

Panasonic AF-100: The Good, The Bad, and The Ugly

Art Adams | 02/08

Director Ian McCamey, Adam Wilt and myself take the AF-100 out for a spin in real world conditions.

Sunday, January 09, 2011

Filed under: BusinessProductionTipsTraining

Career Advice for the Young DP

Art Adams | 01/09

The true barrier to cinematography success isn’t youth—it’s experience. Here’s what a budding DP needs to know about building a career.

Tuesday, December 14, 2010

Filed under: CamerasProductionTipsTraining

Phantom Adventures: 1000fps on a Budget

Art Adams | 12/14

A $250,000 camera, 60,000w of tungsten lighting, 1000fps, kids, animals… what could go wrong? Not much, as it turns out.

This was our last setup of the shoot, and it promised to be a tough one. How could I light a set bright enough to see slow motion detail while keeping it dark enough for the projector image to look real? (The projector image is a post effect, by the way.)

 

Originally I’d thought about bouncing light off the tablecloth from above, but I opted not to do this for a number of reasons. Bouncing light off a low flat surface, like a table, is a great way to quickly light a space and make it look real. Soft uplight looks great on people placed around the table, and the glow from the table’s surface drops off quickly which helps create a sense of space and volume. Hard lights and lights with beams are wonderful tools for lighting at a distance and bringing out texture, but soft bounces and lights that simply glow define a space because they create soft areas of light that people and things can pass through. You can “feel” where they are in relation to objects and people in the frame.

But I didn’t do that.

I wasn’t sure I could hang enough lights over the table to get the amount of bounce light needed so instead I opted for two Maxibrutes popped over the back wall of the set and aimed through diffusion. I had some qualms about this as I wanted to keep the soft light from spilling down the wall; fortunately I had an excellent grip crew who took care of that for me. (This was a great opportunity for me to not have all the answers. I simply told my grips what I wanted, but not how to do it, and they did it faster and better than if I’d told them what to do. That’s an important thing to learn: hire good crew, tell them what you want, and get out of their way.)

The fill light is another Maxibrute, gelled with half CTS (Color Temperature Straw) and pushed through an 8’x8’ frame of grid cloth. CTS is a tough gel to work with in HD as it often “tips” over into green. Strong oranges are the same way. Yellow and orange are awfully close to green on a vectorscope and many cameras will accentuate that relationship in unpleasant ways. Fortunately the Phantom didn’t have this problem with this strength of CTS gel.

It’s nice that the fill is coming from the left as it blends nicely with the blue light on the left side of big brother’s face and then drops off into shadow on the right, giving him a bit of shape.

The window lights are 10k’s gelled with a combination of full CTO and half CTS. I first read about this formula in the American Cinematographer article about the movie “Fargo,” where the DP (Roger Deakins) sought to emulate sodium vapor lighting using tungsten units. The rich orange color really conveys the sense of streetlights outside a window.

Little brother was the focus of the shot and I wanted to pop him out from the others with an additional light. The most obvious motivated light source was the projector, but there was no way I could hide a light near the projector lens that would light the boy but not light the wall. (The wall had to remain dark so the video projector image, added later in post, appeared plausibly contrasty.) I opted instead to bounce a Firestarter par gelled with full CTB off a silver card taped to the floor. The blueish color sold the idea that he was being lit by spill from the projector, and even though the light was coming from below it was still coming from roughly the same direction as the projector and felt very natural.


The Firestarter par on the right is gelled with full CTB and bouncing off a silver card to light big brother. Our fill light, a Maxibrute through 8’x8’ full grid and gelled with 1/2 CTS, is behind Jono.


Faking a ceiling: here a menace arm holds a practical light in the proper position. The various flags and nets were necessary to control burned-out highlights as we were lighting the scene from behind and had to dodge a number of bright white and shiny surfaces. The Rec 709 output of the Phantom is not nearly as forgiving as raw mode is, but that was a different budget.

Noise shows best in flat even surfaces, and DIT Jay Farrington noticed that the flat wall showed more noise than it did in any of our other shots. In order to reduce the amount of noise we changed the camera’s ISO to 160 and dropped our frame rate to 500 or 600fps. This didn’t reduce the noise at all, but as the shot didn’t contain as much dramatic motion as the others we opted to keep the frame rate anyway.

We went back to 1000fps for these two shots, which were completely gratuitous but really cool. These were primarily lit with a Maxibrute through thick diffusion (one or two frames of Lee 216) in order to create a nice soft highlight in the side of the pot. The liquid picked up the light nicely and looked a bit like liquid gold. The portion of the image containing the projector is a freeze frame as we discovered it didn’t put out red, green and blue light simultaneously. Instead it flickered through each color as it painted the frame with red, green and blue light in rapid sequence. Although the effect was very pretty it was also distracting.


Double-diffusing the light to create a nice clean highlight on the tea pot.

Thanks for reading, and I hope you learned something new and interesting. This was a great learning experience for me, and I’m fortunate to have been able to pick the brains of a number of experienced colleagues before taking this shoot on. I also had a great crew to lean on, which is always the key to success.

“RAMBUS XDR”

Regional Spot (Northern California)

Production Company: Compass Rose Media

Director: Jono Schaferkotter

Production Manager: Vanessa Tomasello

Executive Producer: Steve Weisser

DP: Art Adams

DIT: Jay Farrington

Gaffer: Luke Seerveld

Electricians: Alan Steinheimer & Ernie Kunze

Grips: Todd Stoneman & Jeff Nealon

Production Designer: Mykael Merryweather

Camera: Chater Camera

Thanks are due Luke Seerveld, for a ton of great stills, and to Compass Rose Media, for their behind-the-scenes Flip camera footage.

Art Adams is a DP who likes to shoot quickly, even in slow motion. His website is at www.artadamsdp.com.

Thursday, October 07, 2010

Filed under: CamerasProductionTipsTraining

Alexa ISO Settings: The Least You Need to Know

Art Adams | 10/07

Changing an HD camera’s ISO has a greater impact on an image than simply affecting exposure. Learn what’s really happening… and take advantage of it!

Tuesday, September 28, 2010

Filed under: CamerasProductionTipsTraining

Arri Alexa’s Dynamic Range: It’s All in How You Use It

Art Adams | 09/28

Always push exposure to the limits. But learn where the limits are first!

Monday, August 30, 2010

Filed under: CamerasGentryMedia Sister SitesProPhoto CoalitionProduction

Canon 5D: How much dynamic range does it have, really?

Art Adams | 08/30

The DSC 102db chart doesn’t lie: This is what it tells us about how the 5D sees the world.

Friday, August 20, 2010

Filed under: CamerasLightingPost ProductionProductionTipsTraining

My Love Affair with Alexa

Art Adams | 08/20

When the camera sees more than my light meter does, it’s time to acknowledge that the game has truly changed.

Friday, July 30, 2010

Filed under: CamerasTipsTraining

Next Stop: The Last Stop! RED MX Latitude Tests

Art Adams | 07/30

An 18-stop test chart, a tunnel made of showcard and a dozen yards of black plastic ground cover later, we have a pretty good idea of the RED MX’s exposure latitude.

Wednesday, July 28, 2010

Filed under: CamerasProductionTips

IR Cheat Sheet, Updated to Version 2

Art Adams | 07/28

Get the right filter for the right camera!

Wednesday, July 28, 2010

Filed under: CamerasProductionTipsTraining

Arri Alexa and Far Red: A Problem That’s Already Been Solved

Art Adams | 07/28

Most cameras have issues with far red or infrared. There are lots of filters to fix that, but you have to use the right one for the right camera. Read on to see what works with Alexa.

Friday, July 23, 2010

Filed under: CamerasProductionTips

RED MX IR Tests: The New Sensor is Similar to the Old Sensor

Art Adams | 07/23

Don’t throw your IR filters away yet. You’re gonna need them.

Click to play audio / video »
Wednesday, July 21, 2010

Filed under: CamerasPost ProductionProductionTipsTraining

Step into the Matrix: What I Learned from Examining RED’s Build 30 Color Science

Art Adams | 07/21

RED says the MX sensor uses the same colorimetry as their old M sensor. Others say the improvements are so dramatic that this can’t be. A search for the truth led me deep into the heart of The Matrix…

Friday, June 18, 2010

Filed under: CamerasLightingProductionTipsTrainingVisual Effects

Lighting Against The Wind: The Making of a Mime Music Video

Art Adams | 06/18

If your first response to a low-budget music video contest is to cast one actress in three different parts, all of whom appear onscreen at the same time and interact with each other, then this article is for you.

Thursday, June 10, 2010

Filed under:

A Cine Gear Find: TechScout Touch

Art Adams | 06/10

Lighting orders are a touch screen away with this great productivity app for DPs.

Wednesday, June 09, 2010

Filed under: CamerasProduction

GearNex: The Next Generation of Gear Head

Art Adams | 06/09

A small start-up makes another smooth move by improving an already excellent product

Tuesday, June 01, 2010

Filed under: CamerasEditingLightingPost ProductionProductionTrainingVisual Effects

VFX Tell the Story in California State Fair Spots

Art Adams | 06/01

A RED ONE, a barn, seven kids, a guy in a yellow bear costume, the setting sun, an animated dinosaur and dozens of visual effects elements combine to create dazzling imagery on a moderate budget.

Thursday, April 01, 2010

Filed under: CamerasLightingTipsTraining

Everyone Looks Sexy at 1000fps

Art Adams | 04/01

I recently shot high speed tests on the RED and Phantom cameras. Come see which one makes me look most like a bionic dancer.

Friday, March 26, 2010

Filed under: CamerasLightingProductionVisual Effects

The Tiger Lillies Finally Set Sail

Art Adams | 03/26

The Tiger Lillies video you read about on my blog is finally here. And it’s a mind-blower.

Thursday, February 25, 2010

Filed under: CamerasProductionTipsTraining

Random Tips from a Professional Camera Operator

Art Adams | 02/25

Hopefully useful advice to smooth and finesse your moves and tune your viewfinder eye

Thursday, February 25, 2010

Filed under: CamerasProductionTips

Two New Sharp-Looking Charts from DSC Labs

Art Adams | 02/25

Focus on the important things with the Fiddlehead and CineZone charts

Wednesday, February 10, 2010

Filed under: CamerasLightingProductionTipsTraining

The Making of an Epic Media Project

Art Adams | 02/10

A RED ONE, a small but agile crew, and a 2k 60’-wide screening in an Omnimax theater. This, truly, is a modern day epic.

RAMBUS CONFERENCE ROOM, PALO ALTO

This was a fun setup. This is the same location where we shot the circuit boards. The background is lit by a 4’x4 tube Kino Flo, bulbed for 4300k, hung from the ceiling in front of the white board. I opted to cool the background down, as it seemed more interesting to make the white board a different color than white, and it helped to “pop” the person in the foreground by contrasting her warm flesh tones against a cool background.

There are two 1k fresnels aimed straight down into the conference table. A long time ago I discovered that the fastest, prettiest way to light an otherwise dull conference room was to bounce light off the table surface itself, as the light radiating upward created very interesting soft modeling on faces. In this case it beautifully lights the woman as she leans down to speak into the phone. We added a little fill from a Kino Flo out of frame to the right.

Bounced light from below the lens feels very much like “ambient” light to me, and I use it in a lot of situations where I don’t want the environment to seem lit.

The dolly move was done on the Skater Dolly. We didn’t have a real dolly in the budget that day so I proposed making the Skater Dolly do double duty. I love how the lens is so close to the table.

 

Left to right: director Jono, our talent, executive producer Steve Weisser, key grip Jeff Nealon standing on the table, me on the camera, camera assistant Paul Marbury, and gaffer Luke Seerveld.

Remember how I said that shiny barn doors can act like mirrors and reflect hard light onto the set? That’s what all that black wrap is there to prevent.

For this shot we placed some daylight-bulbed Kino Flos outside the window and turned on one bulb each, just to add a blue glow to the background and give the glass wall some additional depth. We probably covered them with diffusion as well. Kino Flo bulbs are very bright to look at, so usually less is more.

The ceiling fluorescents in the hallways are uncorrected office lights.

For this sequence I used a trick that I learned from fellow DP Graham Futerfas, who I know through the Cinematography Mailing List. I mentioned earlier that I rated the RED ONE at EI 160 but kept the camera set at EI 320 to keep the output from looking too dark. Graham told me that he goes into the RED’s Video>Color>Exposure option and tweaks the Exposure value to match the raw image, because the RED’s raw mode is roughly EI 160 when judged by placing an 18% gray card exposure in the middle of the histogram. By toggling between raw and REDspace while adjusting the Exposure value, I found that an Exposure setting of -.4 gave me that match. (This value appears to have changed in later software builds.)

I ended up being able to expose at my desired EI while providing the client with an image that looked brighter than if I set the camera to EI 160, with the added advantage of providing the colorist with meta data that showed them the intended exposure.



The original exposure: camera is set to EI 320 but with the Exposure meta tag set to -.4 to reduce brightness in the output image.



The final grade.

The most interesting thing about this technique is that the image looks really, really smooth.

This shot was lit with a floor-mounted 4’x4 tube Kino Flo inside the room lighting the talent, plus our blue colored Kino Flos were moved inside to silhouette plants against the frosted windows.

I used a Tiffen 80D Hot Mirror filter for this entire sequence, which corrected the tungsten light halfway to daylight, or 4300k. I wanted smooth, beautiful flesh tones, so reducing the red channel kept them from looking pasty while boosting the blue channel increased its exposure and reduced noise.

Fly with me to China, on the next page…

Tuesday, January 19, 2010

Filed under: CamerasLightingPost ProductionProductionTips

Low-Budget PSA’s, Shot on RED, Prove that Budget is Not a Barrier to Excellence

Art Adams | 01/19

Fast, cheap and good—normally you can pick any two. For these PSA’s we got all three.

Friday, January 15, 2010

Filed under: CamerasLightingPre-ProductionTipsTraining

A Tale of Forbidden Love, Shot on RED

Art Adams | 01/15

“Independent film” implies independence from money, but not from quality

Click to play audio / video »
Monday, November 16, 2009

Filed under: CamerasLightingProductionTips

Anatomy of a Spot: Commonwealth Club

Art Adams | 11/16

RED brings a quality boost to a low-budget quickly-shot spot.

Tuesday, November 10, 2009

Filed under: CamerasLightingProductionTipsTrainingVisual Effects

World’s Only “Death Oompah” Band Gets Virtual Reality Music Video

Art Adams | 11/10

The Tiger Lillies sail to a virtual arctic wasteland for their new album “Rime of the Ancient Mariner”

Friday, October 30, 2009

Filed under: ProductionTipsTraining

So You Want to Work with Cameras

Art Adams | 10/30

Time-tested and mostly true advice for getting your first gigs in the film industry.

Thursday, October 29, 2009

Filed under: CS4TipsTrainingWeb Video

ADHD Guide to Flash Video for the Web

Art Adams | 10/29

How to get Flash video on the web, fast

Monday, October 26, 2009

Filed under: CamerasLightingProductionTipsTraining

Rough Guide to Flicker-Free HD Shooting

Art Adams | 10/26

Shoot safely at 23.98p with these few simple, but crucial, tips

Click to play audio / video »
Wednesday, September 23, 2009

Filed under: CamerasTipsTraining

What You Need to Know about Green, Blue and RED

Art Adams | 09/23

I hope you like blue in your greens under tungsten light…

Monday, September 21, 2009

Filed under: CamerasProductionTraining

RED Color Comparison

Art Adams | 09/21

See how the RED stacks up against the Sony EX1

Friday, September 18, 2009

Filed under: CamerasProductionTips

Tiffen Goes Into Production on T1 Far Red Filter

Art Adams | 09/18

If you own an EX1, EX3 or F35 then this is the filter you’ve been waiting for

Tuesday, September 15, 2009

Filed under: CamerasProductionTipsTraining

The Vertical Bar Graph Raw Exposure Meter

Art Adams | 09/15

This RED exposure tool just became your best friend.

Thursday, September 10, 2009

Filed under: CamerasPost ProductionProductionTipsTraining

RED’s Blue Noise: Where It Went, and Other Color Anomalies You Should Know About

Art Adams | 09/10

What you didn’t know you didn’t know about color and the RED ONE

When I went back through my waveform images I noticed another difference between the RED under daylight and under tungsten. Here’s the RED under daylight, with the Channel Mixer beefing up the blue channel from the last page:

The green channel sees green very clearly here. But look at the tungsten-lit chart:

Why does the green channel now see steps in the green chips under tungsten light? The amount of green in each of those chips should be the same, and this notch should match the daylight notch.

I jumped into the Channel Mixer again, and found that I got a match between the daylight chart and the tungsten chart by mixing some red into the green channel (Green - Red) on the daylight chart:

I got this result:

This is a pretty good match.

By adding red to the green channel on the daylight chart, I was able to replicate the green channel response on the tungsten chart. The chips on that side of the chart are green, yellow green (green mixed with some red) and yellow (equal parts green and red). If the green channel only saw green, then it should give us a nice clean notch showing the same amount of green in each chip; but under tungsten light the green channel responds to the gradual increases in red, which it shouldn’t see at all!

I also noticed that the downward notch on the right side of the green channel, where the blue and purple chips live, now shows some steps as well.

Since I mixed red into the green channel, the bottommost step is likely blue while the other, brighter steps are varying shades of purple (blue mixed with red). This is also a match to the tungsten chart. The green channel is definitely seeing red. This is not desirable, and I don’t know why anyone would do this intentionally. My suspicion is that this is a true color crossover issue, with the green filters on the sensor passing red light under conditions where there’s a LOT of red light—such as in tungsten light.

Turn the page for a relatively simple (finally!) summary of what I think I’ve found…

Thursday, August 27, 2009

Filed under: CamerasProduction

CameraMania!

Art Adams | 08/27

The Real Scoop on What the RED ONE and Canon 5D Are Really Good For

Saturday, August 15, 2009

Filed under: CamerasTipsTraining

RED Build 20 Torture Tests

Art Adams | 08/15

Exposure latitude tests reveal perhaps too much about the RED ONE

Tungsten Underexposure

Here we are, once again, at tungsten baseline. The blue legs are a little thick with noise, but red and green are very clean. That’s exactly what you’d see in any camera under tungsten light. The center of the vectorscope looks consistent with brighter exposures.

The black chip on the chart is 5 stops under 18% gray.

The blue channel “steps” are becoming bigger, indicating an increase in noise.

The vectorscope is becoming noticeably fuzzier.

The black chip is now 5.5 stops under 18% gray.

Both the vectorscope and the blue channel waveform are showing a lot of noise.

The black chip is now 6 stops under 18% gray.

This is the end of the line for the blue channel, whose waveform “legs” are very thick and indistinct, showing a lot of noise. The colors on the vectorscope continue to fuzz out.

Once again, the camera’s sweet spot seems to be EI 320, where a black chip at 5 stops below 18% gray in exposure is very clean and fairly free of noise. The vectorscope shows that colors pick up a noticeable amount of noise at as little as -.5 stops underexposed, or between EI 400 and 500.

Turn the page for conclusions and a RED exposure cheat sheet…

Thursday, August 06, 2009

Filed under: CamerasPost ProductionProductionTips

Busy Person’s Guide to Color Correcting the Canon 5D

Art Adams | 08/06

In which I take some pretty footage and make it a lot prettier

This shot and the water fountain shot are my two favorites. Once again this is me running about handheld, finding a frame, and letting it play for a bit before running around and finding another one. Each shot according to its needs…

I should note that I had to grab focus by eye while Cary was swinging, a feat that was made possible—in spite of the 5D’s very low resolution LCD display—by the Zacuto Z-Finder.

This is the Leica 35mm lens, probably around F4.

Here’s the original. From this angle I’m protecting shirt highlights again. I could have opened up a little more but without precise exposure telemetry, like a histogram or zebras, I opted to play it safe—much like Russia’s centrally-controlled economy.

Gain and gamma are boosted to reduce the harsh shadow on Cary’s face. The shadow becomes softer, kinder, and gives generously to charity.

Darkening the corners makes the frame just a little more interesting and focused on Cary.

Edge softness focuses our attention even more, and creates the illusion of shallower depth of field than there really is.

Once again, matching the shirt to previous shots. It looks like I used the Saturation module to bring Cary’s shirt back within “legal” broadcast limits and to conform with the color scheme of the 30th Annual Soviet Military March through Moscva.

Lastly, the Bronze Glimmerglass filter garnishes the frame like a bit of golden yellow onion placed atop a raw herring.

——————————————————————————————————-

Believe it or not, this entire area was lit with two 4x4 bounce cards covered with Reflectix set about 15’ feet away from the close tree. By feathering them we were able to achieve even fill light across the entire area, which is a good thing when working with kids.

Cary had a little bit of a meltdown before this shot, and Simon used reverse psychology to bring him back. I was most impressed. I tried the same trick later on with my dogs. “No, I don’t want you to sit up. Nope, you can’t sit up for me right now. Don’t even think about it.” And they didn’t. Clearly dog psychology is more complex than kid psychology. Now I know why dog psychologists get the big bucks.

Leica 35mm, probably around F4.

The original is a little bit down, but not much. I was very cognizant of the bright background highlights behind Cary’s head and I underexposed very slightly to hold detail in them. It was around this time that the highlights demanded their own trailer and a masseuse.

I boosted the gain to make the shot a touch brighter.

Centered on Cary, the Vignette module reduces the prominence of dad’s green shirt, leaving his face alone. (Yes, yes, I get that dads are important, but this wasn’t personal. It was simply an artistic choice.)

Edge Softness creates the illusion of less depth of field than there is. (If reality is an illusion, did this shoot really happen?)

Even though Cary’s shirt is a very small portion of the frame I was able to see it very clearly on the vectorscope and match it to previous shots according to the dictates of the Bolshevik Revolution.

Ah, a hint of summer, because at 95 degrees it wasn’t already hot enough.

——————————————————————————————————-

This was an easy close-up to shoot. We brought Cary forward to the close tree and pushed the camera in some. Here you can really see the modeling on the camera left side of his face from the two distant Reflectix boards. The edge on the right side is simply reflected skylight.

There are no highlights in this shot as they left, saying something about a three-martini lunch and a strip club by the airport.

Leica 35mm, F4.

Not sure why this original turned out darker than the one above. Gremlins? (I think it was because the shot was originally framed higher, making the bright background more prominent, so I protected for the highlights. And then, as happens so often when working with kids, the shot changed.)

Brought up the gain to make the image brighter. This was no reflection on Cary, who was plenty bright on his own. Too bright, in fact. I had no idea that the “E” in the “E=mc^2” equation stood for “Emu.”

Once again, the vignette brings dad down in prominence. We know he’s there, but for the second or two that we’re watching this shot we should be focused entirely on Cary. Because, you know, if Cary was in danger dad would sacrifice himself to save him, and so we sacrificed dad here for the good of the spot. (Please, no more phone calls. Next time we’ll shoot a spot entirely about dads.)

I blurred dad a little more, just to be malicious, because the phone calls have become really annoying.

Matched Cary’s shirt to previous shots and previous eras of near world supremacy by several fallen socialist republics.

And finally, like a whisper of madagascar cinnamon sprinkled onto a vanilla bean latte, the Bronze Glimmerglass finishes everything off.

Brace yourself for the grand finale, on the next page…

Wednesday, August 05, 2009

Filed under: CamerasTipsTraining

Abel Cine offers New Mattebox System for Canon 5D Mark II

Art Adams | 08/05

Not just for cops anymore, custom donuts are mandatory for the Canon 5D

Tuesday, August 04, 2009

Filed under: CamerasProductionTips

My First Shoot with the Canon 5D

Art Adams | 08/04

For a still camera it shoots pretty nice HD

I was pleasantly surprised by the post workflow. As this was a spec project I took on the task of color correction myself. I’m not a professional colorist but I do like to experiment, and spec projects allow me to play while learning the parameters of how far a professional colorist can effectively stretch different types of footage.

My primary tool was Magic Bullet Looks, which is both fast and easy to use for primary color correction. (Primary correction affects the entire image, as opposed to secondary color correction, which affects only a portion of the image or a select range of colors.) Much of the footage came in to Final Cut Pro looking a bit dark, as I wanted to avoid clipping highlights to avoid that “video” look. I used both the Lift/Gamma/Gain and Offset/Gamma/Gain modules in Looks to boost the midtones to a normal level, while using both the vignette and soft edge modules to direct attention to the appropriate part of the frame.

On top of the Looks module I added a Tiffen DFX 2 digital Bronze Glimmerglass filter, mostly for the warmth and slight softness that it provided. I found it very easy to create a neutral look in Looks that I could then consistently accentuate with a repeatable Tiffen digital filter.

The nice part about using a digital filter is that you aren’t locked into all of the physical filter’s qualities. In this case I liked the subtle softening and warmth that the DFX filter provided but didn’t like the halation, which softened the image more than we wanted. So I simply turned that part of the filter off. (Try doing THAT in real life.)

The one area where Looks and DFX 2 let me down was in the precise adjustment of color, or range of colors. It turns out that the Canon 5D LOVES the color red, although it doesn’t always render it accurately. The biggest problem I ran into occurred during the final shot where the highlight areas of our talent’s red shirt took on a slightly blue cast. Originally I thought this was a red/blue crossover issue, but my friend and digital guru Adam Wilt assured that the problem is more likely that the red channel clipped hard, losing saturation in the highlights, and the remaining blue in the fabric became exaggerated as a result.



The original clip as it came into Final Cut Pro. I protected the highlights very aggressively. Note the slight blue cast to Cary’s sunlit shoulder



The final look. The Tiffen Bronze Glimmerglass is the last step of six that went into making this image; the full range will be shown in a Canon 5D color correction article I’m preparing to post later this week

I tried my best to isolate and correct this one shade of blueish red using Synthetic Aperture’s Color Finesse but I just couldn’t make it happen: saturated colors reveal a multitude of sins, and while I was able to isolate and affect only the areas I wanted, I couldn’t shift them to a highly saturated red that would match the rest of the shirt. I suspect I was sabotaged not just by the deeply saturated colors but by the 8-bit color depth of the compressed footage.

In the end I used Magic Bullet Looks “ranged saturation” module and reduced saturation in the highlights only, which in turn made the blueish-tint of the brightest red highlights less obvious.

You’ve probably heard about the moire issue. It’s real, and it’s on the next page…

Thursday, July 23, 2009

Filed under: Training

NorCal Digital Cinema Society Meeting Tonight, 6pm

Art Adams | 07/23

For those who didn’t get the message via the Cinematography Mailing List or Facebook, the Northern California chapter of the Dig

Tuesday, June 30, 2009

Filed under: CamerasProduction

Facebook Mobile spot, Shot on RED

Art Adams | 06/30

Just add talent, a stolen location, natural light and a RED ONE camera

Tuesday, June 23, 2009

Filed under: CamerasProductionTipsTraining

Black Glimmerglass and Hollywood Black Magic Filter Tests

Art Adams | 06/23

A camera assistant extraordinaire puts two new lines of diffusion filters through their paces

Tuesday, June 16, 2009

Filed under: CamerasProductionTipsTraining

Diffusion Confusion

Art Adams | 06/16

What you need to know about glass filters in the digital age

ABOUT THE INTERVIEWEES

Ira Tiffen was literally born into the industry in 1951. His father and two uncles owned a thriving business that made photographic accessories. “Dad started at 17 as an airplane mechanic,” says Tiffen, “and by 19 he was foreman of a machine shop. At 21 he owned his own machine shop and started making lens caps, lens shades, adapter rings and other camera accessories, including filter rings. At the request of his customers he sourced filter glass from then available vendors to supply complete filters. Soon after, though, he realized that this glass was not up to his customers’ requirements, so he began the development of of what became his unique method of laminating filter glass.”

Tiffen watched his father formalize the FLB and FLD camera filters under flourescent lights in the family basement, and when he was old enough he came to work summers at the family business. He graduated from NYU with a degree in Chemical Engineering and started work full-time shortly thereafter. He left Tiffen, Inc. to pursue his own interests in May, 2004.

Bob Zupka spent 12 years in the reconnaissance industry building high-altitude surveillance systems, and remembers when the industry went from film capture to high definition imaging in 1985. “A lot of the same issues came up then that we are dealing with today,” he says. “Which one is easier to manipulate, things that you can and can’t do with each one, etc.”

In 1996 Zulpka took a job at Schneider Optics, a company with a thriving business in manufacturing projection lenses for screening rooms, but that had also been making still photography lenses and filters since 1913. Schneider wanted to break into the film industry, but the German-based company wasn’t set up to build the large filters required for film work. Zulpka started a U.S. factory from scratch to built 6x6 and 5x5 filters.

Art Adams is a DP who no longer confuses diffusion when he uses it in profusion. His web site is at www.artadams.net.

Wednesday, June 10, 2009

Filed under: CamerasPre-ProductionTips

Using the ND .90 Filter as a Preproduction Tool

Art Adams | 06/10

Spot problem fabrics with an ND filter and a flashlight!

Friday, June 05, 2009

Filed under: CamerasProduction

Far red on the EX1/EX3/F35: “It’s a feature, not a bug!”

Art Adams | 06/05

An official response from Sony tells us that far red is more about helping than hindering

Thursday, June 04, 2009

Filed under:

Look for me at CineGear

Art Adams | 06/04

Wednesday, June 03, 2009

Filed under: CamerasPre-ProductionProduction

The Last Far Red Filter You’ll Ever Need?

Art Adams | 06/03

Tiffen’s latest test prototype kills far red dead on both the EX1/EX3 and the F35

Tuesday, June 02, 2009

Filed under: CamerasPost ProductionProductionVisual Effects

Porsche Spot VFX Breakdown

Art Adams | 06/02

Director Ian McCamey shows how many layers it took to create one shot in our “Porsche: Magnet” spot

Click to play audio / video »
Friday, May 22, 2009

Filed under: CamerasProductionTips

Why Does Blue Hurt So Much?

Art Adams | 05/22

The 80A filter eats up more than twice the light of an 85. What gives?

Tuesday, May 19, 2009

Filed under: CamerasProductionTipsTraining

Tiffen tests new no-ND IR filter for EX1/EX3/F35

Art Adams | 05/19

Crisp clean blacks, and only a half-stop light loss, make this new filter a winner

Tuesday, May 12, 2009

Filed under: CamerasProductionTipsTraining

Optically White Balance the RED with Schneider CTB Filters

Art Adams | 05/12

Get the red out—and put some blue back in!

Thursday, May 07, 2009

Filed under:

Whatever Happened to Ira Tiffen?

Art Adams | 05/07

He’s still working with glass… but not how you think!

Tuesday, May 05, 2009

Filed under: CamerasHardwareProduction

Hands on with the Gearnex Gear Head

Art Adams | 05/05

We take the wheels for a spin

Thursday, April 30, 2009

Filed under: CamerasPost ProductionProductionTipsVisual Effects

Tiffen DFX 2 Digital Filters

Art Adams | 04/30

Take your footage to the next level with this simple post option

Wednesday, April 15, 2009

Filed under: LightingProductionTips

Rosco Shows New IR Filter (and other goodies) at NAB

Art Adams | 04/15

LitePads, IR filters, RoscoView make Rosco booth a destination

Tuesday, April 14, 2009

Filed under: CamerasProductionTips

Gear Head for the RED

Art Adams | 04/14

Sacramento company GearNex brings smooth moves to your favorite HD camera

Monday, March 30, 2009

Filed under: CamerasProductionVisual Effects

Porsche F35 Spec Spot Revealed

Art Adams | 03/30

PVC readers get an early look at my finished F35 spec spot

Friday, March 27, 2009

Filed under: CamerasProductionTips

IR Filter Cheat Sheet

Art Adams | 03/27

You asked for it, you got it: the non-brain-exploding “just what I need to know” IR filter cheat sheet.

Wednesday, March 25, 2009

Filed under: LightingProductionTipsTraining

Mysteries of Color and Light

Art Adams | 03/25

What I learned after a year of developing the Kelvin Tile LED light, plus some other handy tips and tricks of light and color

Thursday, March 12, 2009

Filed under: BusinessWeb Video

The Quicktime Conundrum, Part 2: Solved by our Readers

Art Adams | 03/12

My readers submit additional tips for flawless H.264 Quicktimes

Thursday, March 12, 2009

Filed under: BusinessWeb Video

The Quicktime Conundrum

Art Adams | 03/12

How to get around Quicktime’s H.264 gamma bug

Thursday, March 05, 2009

Filed under: CamerasLightingProduction

Anatomy of a Porsche Spec Spot

Art Adams | 03/05

We push the F35 as far as it can go—and then some!

Wednesday, February 25, 2009

Filed under: CamerasProductionTipsTraining

EX1/EX3 IR Filter Shoot-Out

Art Adams | 02/25

The EX1/EX3 built-in Hot Mirrors suck. Or do they? One way to find out…

FOURTH UP: TIFFEN’S IR ND FILTERS

Here’s the setup I tossed together to test the Tiffen IR ND filters. I apologize for the text overlay on the EX1 image: I was recording HD-SDI out of the camera and was in too much of a hurry to turn all of that off. (I was prepping for a Porsche spec spot, to be written up in the very near future.)

These first shots are through a Schneider ND .9 filter:

You can see heavy red contamination in the DSC chart bag on the right side of frame. Now let’s try the Tiffen IR ND (non-Hot Mirror) filter:

And there’s the proof. This camera has the same problem the Sony F35 does: the chip has a Hot Mirror filter on it that starts cutting at 700nm and rolls off somewhere between 720nm and 750nm, which is why the Schneider Tru-Cut 680 works and the Tru-Cut 720 and 750 don’t. The Tru-Cut 680 cuts low enough that it eliminates any far red that sneaks through heavy ND filtration, because 680nm is the limit above which ND filters start passing light, but the dichroic coating that allows for such a low cut is too heavy to use with wide lenses as it causes cyan vignetting. The Tiffen IR ND filter appears to use a yellow-greenish dye that cuts the complement of far red, and since the cameras already have a very effective Hot Mirror built in there’s no need to use an additional Hot Mirror in front of the lens.

That makes the Tiffen IR ND filters the best choice for two reasons: the lack of a Hot Mirror means no worries about color vignetting on wide lenses, and the fact that there’s no dichroic Hot Mirror coating reduces the cost by about US$400 per filter. It’s also important to note:

These filters CAN NOT be used with conventional ND filters. The yellow-green dye that makes these filters work is proportional to the amount of ND in the filter, so an ND 1.2 filter will have much more yellow-green dye in it than an ND .3.

For example, a Tiffen IR ND .9 combined with a conventional ND .6 will still let through ND .6-worth of far red light. The proper solution would be to use a Tiffen IR ND 1.5.

That the EX1, EX3 and F35 have more than a little in common probably shouldn’t be a surprise considering that they all come out of the Cine Alta group at Sony. They appear to be using similar broad spectrum dyes on the sensors of both cameras, the result of which seems to be an increased sensitivity to far red at the edge of the visible spectrum. As you’ve read in my previous articles, silicon is most sensitive to wavelengths in the infrared range—and the fact that it is also sensitive to visible light wavelengths is pure gravy. The Hot Mirror filters on the sensors actually cut most of the light that silicon is sensitive to (silicon is most sensitive to light in the 1000-1100nm infrared range) in order to make it usable in the narrow band of visible light (380nm-750nm) that we can see. It only makes sense that these sensors should be more sensitive to red, because red is the closest component of the visible spectrum to the range where silicon is most sensitive.


The blue channel, on the other hand, is at the other end of the visible spectrum and has the least impact on silicon. That’s the reason the blue channel is always the noisiest: the weak signal from the blue photosites has to be “pushed’ to bring it into line with the red and green signals.

Thanks once again to camera assistant Rod Williams and to Chater Camera for their help in performing these tests. Any errors, if they exist, are solely my responsibility.

Monday, February 23, 2009

Filed under: CS4Post ProductionProductionTraining

Fake Tilt-Shift Cinematography

Art Adams | 02/23

I’ve seen this in stills and it’s very convincing. Next week I’m doing to do it in motion.

Wednesday, February 18, 2009

Filed under: CamerasProductionTipsTraining

F35 IR Filter Shoot-Out

Art Adams | 02/18

We test IR filters from three major manufacturers to see which does what on the F35

THIRD UP: TIFFEN

Tiffen offers two brands of IR/far red filters: the Tiffen Hot Mirror IR ND’s and the Tiffen IR ND filters (non-Hot Mirror). We were told, in no uncertain terms, NOT to use the Hot Mirror filters on the F35. We did anyway, and discovered that there was no measurable difference between the filter brands… unless you looked at the prices. More on this later.

At present Tiffen offers only IR combination filters, and not a straight IR filter alone. We tried the Tiffen IR ND 2.1 filter:

This filter, like the others, has a color cast to it, although it’s more of a yellow-green than the others, which tended to look more cyan. Here’s what’s left when we white balanced to remove the yellow-green cast:

Um… (gulp) wow! This filter works perfectly. But there’s something wrong…

THERE’S NO DICHROIC LAYER ON THIS FILTER.

It appears to be dyed a magic yellow-green color that removes all trace of far red from the chart bag. So, based on what we know:

(1) The F35 sensor’s Hot Mirror seems to start cutting at 700nm and cuts completely by 750nm

(2) All the other filters have dichroic layers, as evidenced by their change in color when viewed at extreme angles

(3) This filter seems to act only on far red using dye technology

My deduction is that Tiffen has found a dye that is the perfect complement to the 680nm-750nm range of far red that causes problems on this camera, completely eliminating both the need for dichroic layers and the danger of color vignetting on wider lenses.

It’s brilliant.

There is one very, very, very important thing to know, however, when using the Tiffen IR ND filters:

You must never combine these filters with regular ND’s, because the amount of yellow-green used to cut far red is proportionate to the strength of the ND. That means that the yellow-green hue of a Tiffen IR ND 1.2 will be lighter than a Tiffen IR ND 2.1, which requires stronger far red correction. If you combine a Tiffen IR ND .9 with a regular ND 1.2, you are only getting ND .9 worth of far red blockage—because the Tiffen IR ND .9 filter only has enough color in it to block ND .9 worth of far red, and the additional far red passing through the ND 1.2 will not be blocked.

Here’s a quick F35 test I snuck in while writing up my RED IR article. The following image utilizes only the Tiffen IR ND 1.2 filter:

The next image utilizes the Tiffen IR ND 1.2 filter in conjunction with a REGULAR Schneider ND .90 filter:

It’s very subtle, but in the second image there is a slight reddish-maroon coloring to the black jacket on the left of frame. This seems to prove Tiffen’s claim that the far red filtration in its IR ND filter line is proportional to the ND strength and should not be combined with regular ND’s. (And the same seems to be true of Formatt’s Hot Mirror ND’s, probably for a similar reason.)

There is one very, very, very important thing to know when BUYING Tiffen filters:

The Tiffen IR ND is made specifically for the F35, based on research done with the Panavision Genesis. The F35 is an updated version of the Genesis, and as the IR cut filter in front of the sensor on both cameras does a very good job of cutting IR, but not a very good job of cutting far red, you should ONLY buy the IR ND filters for use with the F35 and the Genesis. The Tiffin Hot Mirror ND line of filters incorporates a dichroic Hot Mirror into the filter, which is not only useless when used on the Genesis or the F35 but also costs about US$400 more per filter than the Tiffen IR ND line.

The Tiffen Hot Mirror ND filters work best on cameras like the RED, which don’t have very effective Hot Mirrors on their sensors and pass both far red AND infrared.

Raise your hand if you think Tiffen made a mistake by giving these two filter lines such similar names.

The summary is on the next page…

Tuesday, February 10, 2009

Filed under: CamerasProductionTipsTraining

RED Hot Mirror Shoot-Out

Art Adams | 02/10

We test Hot Mirror filters from three major manufacturers to see which does what on the RED

LAST BUT DEFINITELY NOT LEAST: FORMATT’S HD HOT MIRROR

I haven’t used Formatt filters very often but I understand they have a very good reputation in Europe. We tested the Formatt Hot Mirror IR ND 1.2 filter:

Off all the filters we tried, we liked the way this rendered blacks the best. Here’s the uncorrected version:

The black jacket appeared to us to be completely neutral black. This filter has a slight greenish tint, in addition to a dichroic Hot Mirror, and my theory is that Formatt is doing something along the lines of what Tiffen did with its green-yellow far red blocking dye, in addition to the Hot Mirror.

The only downside is that we did see some mild cyan vignetting on the 16mm lens:

It’s not horrible, but it is there.

Move on to the next page for some summary bullet points…

Monday, February 02, 2009

Filed under: CamerasPost ProductionProductionTipsTraining

The Not-So-Technical Guide to S-Log and Log Gamma Curves

Art Adams | 02/02

What you need to know about log curves—with hardly any math at all

POST: NOW WHAT?

Post color correction couldn’t be easier. Sony lifts the blacks up a bit in S-Log it will be necessary to bring them down to a normal crisp level. (This is not necessary when using Digital Praxis curves as their bases are locked at 0%.) After that it’s just a matter of setting gamma and gain such that you like what you see, and then proceed to perform any other corrections you like. The only time a LUT is necessary is if you are grading for a deliverable that is in a format other than HD, such as a film out.

I had an interesting discussion with Steve Shaw about the choice of color gamut to use in S-Log, or with any form of Log curve. There are several built-in gamut choices in the Sony F35 and F23, but the most useful ones are probably the F900R, which is a very pleasant rendition of Rec 709, and S-Gamut, which captures every color the camera can see, and which Sony says is very close to the color gamut that the human eye can see. When I saw these choices it occurred to me that if I was shooting for both a film out and for broadcast I’d probably want to shoot in S-Gamut and monitor in Rec 709, because that way I’d capture all the colors available to the camera while still being able to view a reasonable image on a Rec 709 compatible display. Steve says that, in situations where you are going for a film out, capturing more information is always better than capturing less, so why not shoot S-Gamut for a film out and then shrink the color space to Rec 709 for broadcast? But he also says that the perceptual differences between Rec 709 and S-Gamut are minimal—because we see colors logarithmically. The farther out from the center of the CIE chart we look the bigger the steps between colors have to be before we see any difference.

A very helpful guide to colorimetry can be found at the International Cinematographers Guild web site.

Thanks to Steve Shaw, George Palmer, Michael Bravin and Dhanendra Patel for their very generous help and feedback over the course of writing this article. Any errors should be attributed solely to the author.

Sunday, February 01, 2009

Filed under:

No pain? NO GAIN!

Art Adams | 02/01

What adding and subtracting gain really does, and what you need to know before you use it

Thursday, January 22, 2009

Filed under: *VIDEO*CamerasProductionTraining

No 85 Necessary on the F35!

Art Adams | 01/22

Take the digital 5600k plunge—your camera will thank you!

Wednesday, January 21, 2009

Filed under:

Correction: Schneider Optics Sings the CTB’s

Art Adams | 01/21

In which I actually do the math to see how Schneider’s new CTB’s measure up to Wratten filters

Tuesday, January 20, 2009

Filed under: *VIDEO*CamerasPost ProductionProductionTraining

Schneider Optics Sings the Blues

Art Adams | 01/20

Schneider’s new 1/2, 1/4 and 1/8 CTB filters have “RED” and “Phantom” written all over them

(Page 5 of 6 pages for this article « First  <  3 4 5 6 >)

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The Best of Stunning Good Looks
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CAMERA MATH: The Importance of Ratios
GEEK-OUT: The Matrix, Reloaded
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LED Light Tests: Flesh Tone and Color Comparison Shootout
BEHIND THE SCENES: Smoke in the Woods with the Canon 5D
LED Light Tests: PRG Sponsors an LED Light Shootout
CANON C300: Trimming White Balance, Plus a Look at Daylight vs. Tungsten Color
CAMERAS: Now It’s Rocket Science
Lights, Camera, Kids: Shooting a Childish Spot for T-Mobile on the Canon 5D
GEEK OUT: The Non-Technical Technical Guide to Sony OLED Monitors
LIGHTING STRATEGIES: Rough Guide to Illuminating a Bounce Card
LIGHTING STRATEGIES: Exploiting a Single Light Source
BOOK REVIEW: “How to Shoot Movies Without Shooting Yourself in the Foot”
LIGHTING STRATEGIES: Placing the Fill Light for Faces
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For You, a Panel Discussion
LIGHTING STRATEGIES: Soft Light vs. Hard Light
Pulse Width Modulation is NOT Your Friend
LIGHTING STRATEGIES: Placing a Hard Key Light
The Simplest, Fastest Interview Lighting Setup—Ever.
The Future of Technology is You
Fill Light: The Underdog of Lighting
Blue Nile Shines Thanks to the Canon 5D and Apple Color
You’ve read my writing, now hear my talking
Anatomy of a Spot: T-Mobile
DSC Labs Hawk Chart: The Simplest Color Chart That You Can’t Live Without
Arri Alexa and Rosco LitePads Come Through for OnLive’s First National Spot
The Secrets of the Chroma Du Monde, Explained Live (on tape) at NAB!







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