Exported image is always stretched... source clips 1080p, sequence settings 720p.
So I'm trying to export a file from FC7 at 720p, but it always comes out stretched, no matter what resolution I have the export set to. The source clips are mostly 1080p, but I chose to edit 720p because my Mac was just too slow to be able to efficiently edit in 1080p.
Sequence settings:
Frame Size: 1280x720 (HD 720p)
Pixel Aspect Ration: NTSC - CCIR 601 / DV (720x480)
Anamorphic: Off
The clip settings are mostly 1920x1080, however I'm also working with some still images that vary in resolution. In editing, all of the clips are zoomed in, as I'm trying to cut out some aspects of the image, and focus on specific details within the clip's frame.
In the canvas, the image looks just as it should be, but whenever I export, it is noticeably stretched. I feel like I've run out of options, and I'm thinking of re-editing the entire thing (it's not that long) in 1080p. My gut tells me that it has to do with the clip formats being different from the sequence settings, but I can't figure out anything else that I could try to get it to export properly.
I was hoping if anybody had any ideas, they could shoot them my way. I'd appreciate it.
Thanks!
MacBook, Mac OS X (10.6.8)