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AE preview size/ratio wrong on new iMac

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James Inniani
AE preview size/ratio wrong on new iMac
on Jun 28, 2018 at 7:00:51 pm

Hey guys,

I just migrated from a 21.5" HD iMac to a 27" Retina 5K, and now my AE compositions are previewing with incorrect magnification ratios + playback resolutions.

I always work at 1080p, and I typically preview at 50% + half res, but this setting now gives me what appears to be 25% + quarter. In order to get my normal playback size, I have to bump up to 100% + full, but if I want to preview the actual full resolution, I have to go up to 200% + full. I've included some screenshots of what I'm talking about.

When I watch any 1080p video on my new iMac at "actual size" (i.e. 100%), it matches the second photo (200% + full). My system preferences appear to be totally normal, although perhaps there is an AE preference I've missed.

How can I fix this?

Thanks so much!

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