Change field dominance Help
Intro Either the top field is temporally first or the bottom field is. Sometimes you may want to change this. For example, if you want to combine a top field first and a bottom field first movie, or when the output format has a fixed field dominance and your movie has the other field dominance.
A special case is PAL films digitized from TV which may become nicely progressive after changing the field dominance.
If you revert an interlaced movie or flip it vertically you probably need to change the field dominance too.Keep first and last field Checking this box keeps the movie's length unchanged. The first and last frame are a little softer.
If you leave this unchecked the movie ends up one frame shorter.Reverse movie If you check this box the movie plays back from end to start. In this case field dominance must be reversed too.
Use this to get smoother reverse than the built-in iMovie effect.
The sound is reversed too.Flip Normally vertical flip of the video image reverses field dominance. The JES Deinterlacer flip changes field dominance at the same time, thus preserving even or odd field dominance (contrary to what the project type suggests).