- Posts: 24
- Joined: Mon Sep 08, 2014 10:10 pm
Wed Mar 17, 2021 6:11 pm
Hi all:
I loaded some Slog2/Sgamut footage shot with an Sony a7s into Resolve 16, and tried testing the differences between working with Resolve Color Management and a LUT (which is how I've been doing it until now). The LUTs I use are the ones developed originally by Alister Chapman when the a7s first came out (http://www.xdcam-user.com/2014/08/set-o ... -sony-a7s/).
So, I first load a clip, add a node with the LUT applied to it, and then I add a node before it and use the log controls. I lower the offset and I see the entire signal getting darker in the waveform monitor, including the highlights. So far so good.
Then I reset everything, enable Resolve Color Management and use Slog2/Sgamut as input colorspace and 709 gamma 2.4 as output colorspace. The first thing I notice is that the clip is quite brighter than with the LUT. I then take the log controls and start lowering the offset... and lowering... and lowering... and the highlights in my image *still* have detail left. Tne entire image is already dark, and there are still highlights at 100% and beyond in the waveform monitor.
Looks like RCM handles highlights very differently than the LUT I've been using, but how exactly? I'd appreciate a technical explanation.
I loaded some Slog2/Sgamut footage shot with an Sony a7s into Resolve 16, and tried testing the differences between working with Resolve Color Management and a LUT (which is how I've been doing it until now). The LUTs I use are the ones developed originally by Alister Chapman when the a7s first came out (http://www.xdcam-user.com/2014/08/set-o ... -sony-a7s/).
So, I first load a clip, add a node with the LUT applied to it, and then I add a node before it and use the log controls. I lower the offset and I see the entire signal getting darker in the waveform monitor, including the highlights. So far so good.
Then I reset everything, enable Resolve Color Management and use Slog2/Sgamut as input colorspace and 709 gamma 2.4 as output colorspace. The first thing I notice is that the clip is quite brighter than with the LUT. I then take the log controls and start lowering the offset... and lowering... and lowering... and the highlights in my image *still* have detail left. Tne entire image is already dark, and there are still highlights at 100% and beyond in the waveform monitor.
Looks like RCM handles highlights very differently than the LUT I've been using, but how exactly? I'd appreciate a technical explanation.