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Problems grading BMCC footage

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Frank Marin
Problems grading BMCC footage
on Jul 21, 2014 at 1:10:46 pm

Hey, I was wondering if some of you could help me with a problem I'm having in Resolve 10. I'm trying to achieve a certain look with my footage but I've been struggling with it for a few days now.

I've colour corrected and have also got a couple of nodes that are keeping the skin tones orange, and the greenery green. I'm currently using Captain Hook's Vibe LUT (on a node after the primary colour correction, skin and grass nodes), and I've got a final node that's got a small S curve, colour balancing (if necessary) and decreasing the saturation a tad.

I filmed on a BMCC with a Sigma 18-35mm in Prores. I also used an IR-cut filter and the Genus Eclipse Variable ND filter.

Here are some LOG frames of what I filmed:

And here is a grade I'm fairly happy with, but still not where I want it despite tinkering with it for a couple of days (no sharpening applied):

Here's a few examples of what I'm going for. To my eye the image looks slightly washed-out and hazy, but not sure how to replicate this in Resolve:

If someone could point me in the right direction I would be extremely grateful!

Thanks for reading :)

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Glenn Sakatch
Re: Problems grading BMCC footage
on Jul 21, 2014 at 2:35:21 pm

Part of your problem is the way the footage is shot. (lens use)
Your first two optimal examples have a much stronger film look, in part because of the depth of field achieved through the lens. Your new shots have pretty much everything in focus, except #3. Part of that out of focus imagery is causing some of the "haze" your are describing.

Second thing, look at either of the first two pictures that you are trying to achieve. What is the blackest item in the picture? The sunglasses? the black shirt? the shadows of the hairline? Now how dark do you think those would register on a waveform?

Now look at the darkest parts of your shots...ask yourself the same questions. Your blacks are way deeper than those of the shots you are trying to recreate. This is going to help you achieve the washed out look.

Comparing your third optimal shot to the first two is not fair. The looks between those shots is so different I wouldn't try to compare them. More saturation, more vibrant colours, more contrast ratio.

If those 3 shots appeared in a clip, in that order, I would assume someone would ask to have the third clip tweaked to match the first two.


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JP Pelc
Re: Problems grading BMCC footage
on Jul 25, 2014 at 7:13:40 pm

Glenn nailed it. The deep DoF is too late to change, but raising the blacks should take you pretty far in achieving your desired look.

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