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Filed under: *VIDEO* •Cameras •Production •Training •

No 85 Necessary on the F35!

The Sony F35 is probably the quietest camera in the world, which is why I really had to exaggerate to show this process in action. I shot a DSC color chart twice:

Under 5600k daylight, using D5600 mode with no filtration:

And then, under 5600k daylight, in tungsten mode with an 85 filter and all other settings the same:

(The chart shot with the 85 filter looks a little blue because the 85 only corrects from 5600k to 3400k. Full correction to 3200k requires an 85B filter.)

In Final Cut Pro I zoomed in 1000% so that the black chip filled the frame. Here are the resulting waveforms:

First, D5600 with no filter:

Next, tungsten mode with an 85:

The thickness in the blue channel under tungsten light is noise resulting from gain. In film terms,it’s almost as if the blue channel, and the blue channel alone, has been “pushed” a little bit. (These show that the daylight chart was a little warm, and the 85 chart was a little cool, but this was how they read on white balance preset in both modes with no additional painting.)

What’s interesting is that the red channel is much quieter in tungsten mode but shows a little noise in D5600 mode. (The expanded width of the red line indicates noise.) Under D5600 red and blue show about the same amount of noise, although blue is considerably quieter than when using an 85 filter. In the test with the 85 filter the red channel is very, very clean—although the blue channel is a lot noisier.

My opinion is that the increased red noise under D5600 isn’t anywhere near as much of a problem as the increase in blue noise with an 85 filter. Remember, though, I had to zoom in 1000% just to see this little bit of noise. The Sony F35 is the quietest camera I’ve ever seen, in both tungsten and daylight, and my preliminary tests show that I can push it to +9db before seeing any objectionable noise. And even then it’s quieter than any other camera I’ve seen at +9db.

What this should tell you is that you don’t need to carry an 85 filter EVER when using this camera. You won’t need to add any color correction to shoot in daylight, and take the resulting exposure hit, when shooting low light day interiors or at magic hour.

So next time you’re shooting in 5600k light with an F35, leave the filter case alone and instead go to the first OPERATIONS menu page and turn the “D5600” option to “on”. And make sure production knows that you’ve saved them a $10 filter rental.

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you mean…
If I work with the F900 , I won’t need to turn the correction filer to the 5600K…but just go with 3200K filter wheel and turn the electronical 5600k mode on in the menu..

Posted by .(JavaScript must be enabled to view this email address)  on  01/23  at  01:16 AM

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