BMPCC best lowlight settings for raw

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Brian Schuck

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BMPCC best lowlight settings for raw

PostSat Sep 30, 2017 10:30 pm

im looking to see what the best low light settings are for BMPCC raw. thaks
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Uli Plank

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Re: BMPCC best lowlight settings for raw

PostSun Oct 01, 2017 1:08 am

No, an iGPU is not enough, and you can't use HEVC 10 bit 4:2:2 in the free version.

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Anatoly Mashanov

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Re: BMPCC best lowlight settings for raw

PostSun Oct 01, 2017 1:51 pm

At 30 fps, ISO 800, angle 360 (or 324 if it blinks and mains is 50Hz)

You may want to apply some noise suppressor plugin, subtraction of black field and additional brightness controls in postprocessing.

My experiments with long exposures basically failed due to terrible FPN.
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Uli Plank

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Re: BMPCC best lowlight settings for raw

PostSun Oct 01, 2017 10:05 pm

An angle of 360 will give you an extra stop, but some smearing of motion.
No, an iGPU is not enough, and you can't use HEVC 10 bit 4:2:2 in the free version.

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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostMon Oct 02, 2017 1:44 am

you mean like a blur?
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rick.lang

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Re: BMPCC best lowlight settings for raw

PostMon Oct 02, 2017 2:05 am

All depends upon the degree of motion of course (whether it’s your subject or the camera) and if the camera is following the motion, you may get attractive ‘movement’ in the background while your subject may look very acceptable. I’ve liked using 360 degrees shutter angle and it shouldn’t be overlooked as another creative tool on your box.


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Uli Plank

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Re: BMPCC best lowlight settings for raw

PostMon Oct 02, 2017 11:47 pm

Yep, it's just another aesthetic decision.

We are used to 180 degrees of shutter in cinema, but when Michael Mann wanted to shoot night ext without additional lighting in "Collateral" he used 360 degrees. Have a look at the chase on the pedestrian bridge over the highway for example, once both characters have left the hotel. Motion blur changes between the shots on the stairs inside the building and the ones outside.

The other extreme would be very short exposure times like Spielberg used in "Saving Private Ryan" in the beach scenes. While the soldiers are under heavy fire, the staccato of the machine guns in audio is supported visually by the staccato of short exposure times, which make motion look less continuous.
No, an iGPU is not enough, and you can't use HEVC 10 bit 4:2:2 in the free version.

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Dmytro Shijan

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Re: BMPCC best lowlight settings for raw

PostTue Oct 03, 2017 1:24 am

There is only one camera setting for RAW - Set Zebras to 100% and Do Not Clip Highlights. It is more important how do you process that RAW file than camera settings.

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See also this post for details viewtopic.php?f=21&t=65149

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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostWed Oct 04, 2017 10:44 am

thanks for all the tips, im going to practice some shots this weekend.
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Tommaso Alvisi

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Re: BMPCC best lowlight settings for raw

PostWed Oct 04, 2017 11:46 am

If you have a light meter try to understand your limits as far as FPN is concerned.
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Dmytro Shijan

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Re: BMPCC best lowlight settings for raw

PostWed Oct 04, 2017 12:15 pm

Also don't forget that for RAW you need to do a color compensation with Color Checker target or manually based on ProRes footage sample. Otherwise you got weak and brownish greens, orangy reds, cyanish blues and weak yellows See test samples here viewtopic.php?f=21&t=60158#p344147
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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostFri Oct 06, 2017 2:49 am

in what order do you use the color checker? you have rec709 or bmd film to convert to do you do the color checker after camera raw? thanks
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David Regenthal

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Re: BMPCC best lowlight settings for raw

PostFri Oct 06, 2017 7:11 am

You’d want to use it at the head (or tail) of your clip so that it will be available to DaVinci when you get to your grading/color correction step in your editor.
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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostFri Oct 06, 2017 11:22 am

so basically after camera raw is fine? thanks
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David Regenthal

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Re: BMPCC best lowlight settings for raw

PostFri Oct 06, 2017 3:55 pm

Brian Schuck wrote:so basically after camera raw is fine? thanks


Nope. I may not be making a clear explanation, but think of it as a two step process.

1. You want the Color Checker to be visible in the frame at the beginning of the clip (when you record):

raw.jpg
raw.jpg (78.47 KiB) Viewed 7040 times


2. Then, when you get to your edit (there is a color match tool in Resolve) you can quickly get to a good starting point like (probably not the best example) this:

grade.jpg
grade.jpg (91.76 KiB) Viewed 7040 times
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Dmytro Shijan

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Re: BMPCC best lowlight settings for raw

PostFri Oct 06, 2017 6:07 pm

Brian Schuck wrote:in what order do you use the color checker? you have rec709 or bmd film to convert to do you do the color checker after camera raw? thanks


Currently i came to this but it still testing things and this is not final workflow:
In Project Settings:
Input set to BMDfilm/BMDfilm
Timeline set to V-gamut/RED Log3G10 (I just subjectively like V-gamut color space but You can always experiment with different working color spaces. RED Log3G10 also just subjectively looks nice when you adjust contrast and allow very large expose adjustments without clipping data)
Uncheck - "use S-curve for contrast"

- Expose up adjust in RAW
- WB adjust in RAW
- set XY (Pan/Tilt) position to 0.5px to remove Cross Hatching Pattern.
- Noise Reduction Node
- Gain down adjust Node
- WB adjust Node (optional for more precise WB adjust)
- Color Checker Node (set it to Log3G10 in out gamma and Panasonic V-gamut gamut) You can do a separate Color Checker sample before every shot or just do a single sample in netural light enviroment and use this correction in future almost in any video.
- Highlghts adjust Node
- Contrast Node (for RED Log3G10 set Pivot to 0.38)
- Color space Transform Node (Panasonic V-gamut/Log3G10 to Rec709/Rec709 Enable Saturation and Luma Mapping)
- Film Emulation 3Dlut Node (Optional. Sometimes this needs to disable Contrast Node)
- Sharpen Node


Do Not use Color Checker correction in Rec709 color space and gamma because this color space is very small and so Color Checker correction produces clipping and ugly unnatural colors.

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Last edited by Dmytro Shijan on Mon Oct 09, 2017 10:31 am, edited 1 time in total.
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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostMon Oct 09, 2017 1:47 am

thanks i will give that a try! i did a music video this weekend, RAW with panosonic 25mm 1.7 i got noise in the roof of the garage its concrete, i tried every in raw to get it better i shot at 800asa not sure what my issue is,
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Dmytro Shijan

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Re: BMPCC best lowlight settings for raw

PostMon Oct 09, 2017 10:30 am

This may be not a noise but moire pattern. Or moire pattern mixed with noise and with "Cross Hatching Wont Go Away" pattern (search about this problem at this forum as well). RAW is producing very hard moire compare to ProRes. It is not so simple to get clear image from this camera as is.
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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostTue Oct 10, 2017 11:10 am

thats what i was thinking because i tried everything, i like using raw because no detail lose but might try prores again. what is the best monitor setting to use? rec709 or srgb for grading, thanks
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rick.lang

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Re: BMPCC best lowlight settings for raw

PostWed Oct 11, 2017 5:33 pm

Brian, I believe it depends on your delivery vehicle. If you’re distributing on the web for a computer monitor then set your monitor to sRGB. If you think your deliverable will be on a normal television, then Rec.709 for grading. I’ve been using mostly Rec.709.


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Brian Schuck

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Re: BMPCC best lowlight settings for raw

PostFri Oct 13, 2017 11:18 pm

im planing on getting a BenQ monitor srgb, am I able to change Resolve to srgb? thank you
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Dmytro Shijan

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Re: BMPCC best lowlight settings for raw

PostWed Nov 08, 2017 6:45 am

It sounds insane but i just found that there are two different implementations of RAW input colors in Resolve. To get correct colors from RAW you need to bypass input color space transform in project settings:

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