FINAL CUT - Format info for still images
Under file new select film/video

* Images can be TIF, PNG, or JPEG; however, I prefer TIFF.
* Create / size your image in Photoshop read on.
* Import the file into Final Cut using File > Import > File.

This process works for both 4:3 and 16:9 images.

Final Cut will scale the image into the correct aspect ratio for video automatically. if you want to crop or determine how image will look in final cut you may prep in photoshop
1. DV-NTSC
Flattened single later image, 720 wide X 540 high X 72 pixels per inch (tiff format)
Photoshop multi layer image, 720 X 480 X 72 pixels per inches (psd format)

2. DV – NTSC (16 X 9) widescreen
Flattened image one layer tiff = 864 X 480 X 72
Photoshop multi layer image = 720 X 480 X 72, Flattened aspect ratio 16 X 9