Should I upscale 1280 video I took to 1920 or downscale to 720? Slow mo Vid with Mark iii

[JPhardboiled]

Should I upscale 1280 video I took with my Canon Mark iii to 1920 or downscale to 720 for Youtube etc? I took 1280 video to do slow motion with a Canon Mark iii, and I'm using Premiere.

So what would be best to look better downscaling or upscaling my 1280 video after ready to export?

[TTMartin]

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@JPhardboiled wrote:

Should I upscale 1280 video I took to 1920 or downscale to 720? I took 1280 video to do slow motion with a Canon Mark iii, and I'm using Premiere.

So what would be best to look better downscaling or upscaling my 1280 video after ready to export?

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I would recommend down scaling it.

[JPhardboiled]

Thanks, but why downscale as opposed to upscale or even keep it how it is?

Thanks again, I'm just not sure as to what will hold quality best when I post it on Youtube and other online sites.

[Mitsubishiman]

YouTube automatically resizes resolution based on the browser utilized for viewing, I have uploaded hi res and then viewed it in my phone where it was being displayed at 720