Posts: 41
Threads: 15
Joined: May 2015
Hi!
I've rendered a few clips with areas of high contrast and detail, and with animated zoom. On the finished YouTube video, the areas containing the most contrast and detail tend to flicker a lot, with intervals of about 0.5 seconds. It's not like the "contrast flicker" that I sometimes get when deflickering in LRTimelapse, but a more steady flicker affecting areas of high detail throughout the clip.
Could it be that the compression algorithms get problems with the amount of detail when combined with zoom animation?
The problem get's a whole lot worse if the camera is shaking slightly.
I now have razor sharp Sigma Art lenses and use pretty strong contrast and clarity, so the clips are very very sharp - maybe too sharp?
Workflow is :
1. 46 mpix 14-bit Nikon RAW files.
2. Zoom animation in LRT/Lightroom and export/resize to TIFF16 4k UHD. Clarity often +30-50. Default sharpening settings in LightRoom.
3. Render to ProRes 444 Ultra High Quality 4k UHD, with sharpening.
4. Render in Premiere to h.264 4k UHD, 300 Mbps
5. Upload to YouTube 4k UHD.
Added an example image. The highly detailed rock field in the middle of the picture would most probably flicker when doing zoom animations.
Any suggestions? Buy softer lenses maybe?
Kind regards,
- Jørn
I've rendered a few clips with areas of high contrast and detail, and with animated zoom. On the finished YouTube video, the areas containing the most contrast and detail tend to flicker a lot, with intervals of about 0.5 seconds. It's not like the "contrast flicker" that I sometimes get when deflickering in LRTimelapse, but a more steady flicker affecting areas of high detail throughout the clip.
Could it be that the compression algorithms get problems with the amount of detail when combined with zoom animation?
The problem get's a whole lot worse if the camera is shaking slightly.
I now have razor sharp Sigma Art lenses and use pretty strong contrast and clarity, so the clips are very very sharp - maybe too sharp?
Workflow is :
1. 46 mpix 14-bit Nikon RAW files.
2. Zoom animation in LRT/Lightroom and export/resize to TIFF16 4k UHD. Clarity often +30-50. Default sharpening settings in LightRoom.
3. Render to ProRes 444 Ultra High Quality 4k UHD, with sharpening.
4. Render in Premiere to h.264 4k UHD, 300 Mbps
5. Upload to YouTube 4k UHD.
Added an example image. The highly detailed rock field in the middle of the picture would most probably flicker when doing zoom animations.
Any suggestions? Buy softer lenses maybe?
Kind regards,
- Jørn