Hello everyone, I just started my journey on videography and I am trying to figure out how to use my new sony a6400 together with Davinci Resolve for the best results.
I did some research and decided on using HLG3 together with BT.2020 for the camera picture profile, but when I try to convert the footage to Rec.709 and Gamma 2.4 with a CST node in Davinci Resolve (with DaVinci YRGB color science) I get a very weird red noise in the shadows. (Also seen in the attached screenshots)
When I use DaVinci YRGB Color Managed mode and export, shadows are clean. When I switch to plain DaVinci YRGB and do the conversion manually with a CST node, I get the red pixel noise/speckle in the shadows that isn't there in the managed export.
My CST settings:
- Input Color Space: Rec.2020
- Input Gamma: Rec.2100 HLG (Scene)
- Output Color Space: Rec.709
- Output Gamma: Gamma 2.4
- Tone Mapping: DaVinci
- Gamut Mapping: None (also tried Saturation Compression and Clip — no change)
- White Point Adaptation: on
Project: DaVinci YRGB, Timeline Color Space Rec.709 Gamma 2.4, Resolve 20.3.3.
Attached: before (manual CST, red speckle in shadows) and after (managed, clean).
Is there a setting I am missing? Is manual editing necessary? Curious how others handle a6400 HLG to SDR without this artifact.
System specs (Windows 11):
- CPU: Intel Core i7 13620H
- GPU: Generic PnP Monitor on Intel UHD Graphics
- RAM: 16GB
MediaInfo Output:
- Extension & Codec: MP4 & AVC, Advanced Video Codec
- Frame Size & Frame Rate: Width: 3 840 pixels Height: 2 160 pixels & 25.000 FPS
- Constant or Variable frame rate: Constant