User Manual

Mixing Frame Rates and Field Motion Types
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Changes you make to the Field Motion attribute apply only to the individual clip or subclip. You
can have several subclips derived from the same master clip, and set different Field Motion
values on each of them.
When you change the Field Motion attribute of a clip, it updates if it is loaded in a Source or
pop-up monitor, and new edits into a sequence from the clip use the new Field Motion attribute
value. However, edits that you made from that clip before you change the Field Motion attribute
continue to use the old value. If you want to update a sequence so that all its Motion Adapter
effects use the current Field Motion attribute values for their source clips, refresh the Motion
Adapter effects for the sequence. For more information, see “Refreshing Sequences to Use
Current Clip Attributes” on page 601.
To modify the Field Motion attribute for a clip or subclip:
1. Open the bin that contains the clip or subclip you want to modify.
For more information, see “Opening and Closing Bins” on page 74.
2. (Option) If it is not already visible, display the Field Motion bin heading.
For more information, see “Using Text View” on page 325.
3. Click the Field Motion item for the clip or subclip, and select one of the following:
Option Description
Interlaced Use for all video with interlaced field motion.
2:3 Film Only available for clips or subclips created in 30 fps projects.
Use for a clip or subclip that contains 2:3 pulldown.
Video material can contain pulldown frames in a number of circumstances,
such as the following:
• The telecine process inserts pulldown frames when it transfers film
footage shot at 24 fps to 30 fps video.
• Some cameras can shoot at 24 fps but record at 30 fps, and insert
pulldown frames to achieve the record frame rate.
• Some HD video decks insert pulldown frames when downconverting
material, for example, from 1080p/24 to NTSC 30i.
Progressive Use for progressive video.
Progressive Strobe Use for a clip or subclip that contains repeated frames, for example, a
traditional strobe motion effect clip, or a clip where the original video was
shot at a reduced frame rate such as 15 fps.
Usually results in a better finished look because blending between frames
reduces stuttering motion.