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Question: 4K Sequence - Zoom in and export 1080

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Joshua Young
Question: 4K Sequence - Zoom in and export 1080
on Apr 12, 2019 at 10:33:16 pm
Last Edited By Joshua Young on Apr 12, 2019 at 11:06:56 pm

Question. My computer can handle editing 4K native. So can I just zoom in some clips on a 4K sequence to say 200% and then when I export to 1080, the resolution for 1080 on the zoomed in clips would be good?

I hear a ton about editing 4K in 1080 sequences and zooming in there, but don't hear about this other way around. So to clarify:

1. I have a bunch of 4K footage and need to punch in for some close-ups (I'm not a fan of this but it's what the client wants).
2. My sequence is in 4K. They may one day want a 4K version. So thought why not.
3. Can I zoom in to certain clips to 150-200% in the 4K sequence without quality loss when the entire thing gets exported at 1080?


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John Pale
Re: Question: 4K Sequence - Zoom in and export 1080
on Apr 13, 2019 at 1:02:04 am

Yes, you will lose quality that way. You are blowing up the image larger than its raster size. You don’t reclaim that resolution by putting the result in a 1080 sequence.


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Jeff Pulera
Re: Question: 4K Sequence - Zoom in and export 1080
on Apr 15, 2019 at 2:51:30 pm

You would need to edit in the 1080p sequence in order to punch-in and retain quality from 4K source. If you blow-up the 4K footage in a 4K sequence, you lose that quality no matter what you export as - 4K, HD, SD.

Jeff Pulera
Safe Harbor Computers


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John Heiser
Re: Question: 4K Sequence - Zoom in and export 1080
on Apr 15, 2019 at 8:31:32 pm

But even in HD, I routinely enlarge to 105%-110%, or even larger, with quite acceptable quality ("acceptable" being subjective) depending on your video's final destination. So you should be able to make minor framing adjustments in 4k or UHD with little ill effects. For example, if a handheld shot is not quite level, you can probably enlarge it enough to rotate the shot a few degrees. It just depends on how unreasonably finicky you are about quality.

John Heiser
Senior Editor
o2 ideas
Birmingham


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Jeff Pulera
Re: Question: 4K Sequence - Zoom in and export 1080
on Apr 15, 2019 at 8:40:52 pm

Hi John,

Totally agree that one can do slight zooms of 105-110% and looks just fine typically, but OP was talking about 200% blow ups

Thanks

Jeff


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