Our project is shot in DV PAL which has a frame size of 720×576. However, we’re using the footage in anamorphic aspect ratio and discovering that exporting to other formats has interesting side effects.
FCP handles the anamorphic aspect ratio as easily as clicking a checkbox. When exporting a QuickTime movie it will always have a frame size of 720×576 (the native resolution). If you want to create a QT Movie for viewing in anamorphic (1024×576 display size) the footage must be run through Compressor (or QuickTime Conversion) and specify the larger size. It’s not automatically done for you.
The business of handling anamorphic footage is becoming a problem for our visual effects shots. Some artists request TIFF sequences rather than QuickTime Movies and unfortunately TIFF export will render the image in anamorphic’s 1024×576 frame size which produces unwanted artifacts when scaled back down to 720×576.
After some experimentation I discovered the way to force a TIFF export to the native size is unchecking the Anamorphic setting on the clip. Strangely, this produces an image of 768×576 rather than the desired 720×576. Is this OK? I’m waiting for my VFX Supervisor to tell me.
A related bug with TIFF export is the handling of file names. Although Apple warns against the use of special characters in clip file names (i.e.: /, ?, *, etc.) it does nothing to stop you from using them. I haven’t encountered any issues with forward slashes until I began exporting TIFFs. These special characters must be removed during the TIFF export process but QuickTime Movie files are exported without error.
This was observed using FCP 6.02.