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Re: Scaling 1080 DSLR footage down to 720, but screening in 1080.

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Isaac Brillant
Re: Scaling 1080 DSLR footage down to 720, but screening in 1080.
on Mar 31, 2015 at 12:36:42 pm

Hi,

OK, I ran a test yesterday. I exported the following (all in Prores422 unless otherwise noted):

1) 1080 sequence exported at 1080 (where punched-in shots are scaled up to 150%)
2) 720 sequence exported at 720. (where punched-in shots are at 100% ie 1080 and the original shots are in 66.67%) Enlarged in quicktime player to compare to the 1080 export.
3) 720 sequence (where punched-in shots are at 100% ie 1080) exported at 1080
4) 720 export (where punched-in shots were at 100% ie 1080 before exporting) re-transcoded to 1080
5) 720p sequence (where punched-in shots are at 100% ie 1080) nested into a 1080 sequence
6) 1080p sequence (where punched-in shots are scaled up to 150%) nested into a 720 sequence

I then compared them in quicktime viewer, at 150% view. Keeping in mind that my footage wasn't crystal sharp to begin with, and I added a sharpening effect-- I hardly noticed a difference in quality/sharpness between them all. There may have been a very very subtle difference but I had to look back and forth a few times to tell which one was better.

I also exported the 1080 sequence (#1 above) in ProResLT and didn't notice a difference between that and ProRes422.


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