Frame size mismatch

I have shot some music video footage in 1080p. I also want to add some slow motion footage from an iPhone which can only do 720p (when it's in slomo). The slomo shots make up only about 5% of the entire project.

Normally, I'd say that I keep my timeline in 1080 for better overall quality and upscale the 720 clips. However, the project is for Youtube and it seems to me that going the other way could be preferable.

What do you think?

Stefan

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macpro 2x3 ghz dual core intel, 10.6.8, FCS 2

I think your original plan is better. Being on YouTube doesn't mean only being on YouTube, and forever. People will download your YouTube videos, etc.

Suppose you want to make the best 720x1280 possible from your material. The image quality will be judged by the 95%, not the 5%, of material.

With your second plan you'd throw the 1080x1920 material into a 720x1280 timeline. But FCP6/7 does a not-so-fine reduction. By editing in a 1080x1920 timeline instead, you can throw the whole 1080x1920 output file into Compressor for its best downscaling to 720x1280.

For similar reason, when editing in the 1080x1920 timeline, you wouldn't throw in the 720x1280 material. You'd first put it through Compressor, for best upscaling to 1080x1920.

Dennis Couzin
Berlin, Germany