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4
votes
3answers
72 views

Does 4K impact quality when filming in low light? (other parameters being equal)

I'm wondering if filming with a 4K camera, possibly downsizing to Full HD, will give better detail than filming with a Full HD camera (other parameters being equals). Sub-question (maybe I should ...
1
vote
0answers
35 views

editing 4k and 3840 × 2160 video with a Mac pro1,1

I just got a Panasonic Gh4 camera and recorded some 4k footage with it. For editing I have a Mac pro1,1 (2007): Dual-Core Intel Xeon - 2,66 GHz NVIDIA GeForce 7300 GT - VRAM:32768 MB 15 GB memory ...
1
vote
1answer
504 views

How to downsample 4k to 1080p using ffmpeg while maintaining the quality?

I have some 4K 3840x2160 footage in MP4 format that I need to bring down to 1080p. I tried running ffmpeg -i orig.mp4 -vf scale=1920:1080 smaller.mp4 but the result is very poor quality, with ...
3
votes
1answer
88 views

Downsampling 4K footage for an increase in chroma sub-sampling

We have a Lumix GH-4 camera, which can shoot in 4K with 4:2:2 color space. I'd like to be able to convert the footage to 1080p 4:4:4 color space. I've read that there some ways of doing this: ...