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Sunday, November 30, 2008

Filed under: Cameras

CMOS sensors are tastier without Jello

Matt Jeppsen | 11/30

The Canon 5D MKII doesn’t appear to suffer from excess rolling shutter skew

We’ve already seen some excellent video footage from the new Canon 5D MarkII DSLR camera. However, I’ve not really seen the sort of test footage that reveals CMOS wobble (the jello effect) or rolling shutter skew. While this isn’t a perfect test, I was encouraged to see a lot of motion in the following video shot on the streets of Beijing. It appears, anecdotally at least, that the 5D samples from it’s sensor much faster than the ultra-wobbly Nikon D90, and the camera sure looks like it would handle most situations with aplomb. Video embedded below.


Canon EOS5DmkII, One night in Beijing. from Dan Chung on Vimeo.

For more on how this video was shot and edited, visit its Vimeo page.

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So the question I have is, how do you do audio “right” into the camera, and what does it take to get it to 24p?

Posted by  on  11/30  at  07:35 AM


Well, the 5D MK2 does have a 3.5mm stereo mini jack for audio input, so it would be a simple thing to mount a decent shotgun on the camera, or connect it to a Beachtek box (which definitely would require using a tripod or a rig like the Zacuto or Redrock DSLR supports).

As to 24p conversion, I personally don’t give a flying rip that this thing only shoots 30p. grin In fact, given the choice between the two, 30p would be my choice for the majority of projects I work on. However, there are plenty of ways to do this in post.

Compressor does framerate conversions rather nicely. Nattress has excellent plugins for standards conversions (and cheap). Heck, FCP will conform 30p footage if you drop it on a 24p timeline (not sure how this looks, haven’t tested to be honest). At any rate, I think the 24p complaint is being overblown. MHO.

-Matt Jeppsen

Posted by Matt Jeppsen  on  11/30  at  10:32 AM


I don’t know that it’s overblown, because it’s what the indie crowd likes, and it takes up 20% less space.

Posted by  on  11/30  at  01:17 PM


Yep, 20% less space, and 20% more motion judder. grin Horses for courses, I just prefer 30p in general for the projects that pay my bills.

-MJ

Posted by Matt Jeppsen  on  12/01  at  06:30 AM


I’m not discounting that, but the indie and hobby crowds are a great market to tweak your product for and build a relationship. If it’s a software issue, you’d think they could work it out.

I like shooting talking heads at 24p when I know it’s for online delivery. The less data I have to push down the pipe the better.

Posted by  on  12/01  at  07:17 AM


Thanks for the mention, Matt, but 30p just doesn’t convert to anything else very well at all. Not with my software, not with anyones that I’ve seen. FCP just drops frames, nice of it, if you put 30p on a 24p timeline.

The real issue is not so much the 30p, but the 360 degree shutter, which gives a video feel no matter what the fps....

Posted by Graeme Nattress  on  12/01  at  11:02 AM


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