Apple Cinema Tools 3 - Manual (Page 119)

Chapter 6 Preparing the Source Clips for Editing 119
Using Batch Reverse Telecine
If you need to reverse the telecine 3:2 pull-down of several clips, you can use the Batch
Reverse Telecine command to process several clips at once.
Note: If your source clips originated from a certain type of DV camcorder that shoots
24P, such as the Panasonic AG-DVX100 camcorder, see “
Removing 2:3:3:2 or 2:3:2:3 Pull-
Down With Cinema Tools ” on page 190.
Preparing to Use Batch Reverse Telecine
There are a couple of things you should do before using batch reverse telecine.
 Before you start a batch reverse telecine process, use the single-clip reverse telecine
process on one of your clips and check the results to make sure the settings you plan
to use work correctly. For instructions, see “
Using Reverse Telecine on a Single Source
Clip ” on page 115.
 If you are working with video that contains two fields, make sure that all your clips
have the same field dominance. For help, see “ Determining the Field Capture
Information ” on page 114. Some digitizing hardware may switch unpredictably
between F1 - F2 and F2 - F1 field dominances. If you find that some of your clips
have one and some have the other, you can separate your clips into two field
dominance batches and batch process them separately.
Checking Your Reverse Telecine Results
After a telecine 3:2 pull-down transfer, the upper field is typically field 1 and the lower
field is field 2, except when using DV. Normally, when the “Standard upper/lower”
checkbox is checked, Cinema Tools determines what needs to be done and the clips
are processed correctly. However, on rare occasions, video is captured or processed in
such a way that field orders are switched, and this can result in flawed reverse
telecine results.
To check your results, look at the frames of a clip that has been processed by reverse
telecine. As you look at each frame in the clip, you should see the sequence of A, B, C,
and D frames repeat and each letter should be clearly legible. You should not see any
inter-field flicker. The film frame numbers should increase sequentially and those
digits should also be clearly legible. If not, try using the reverse telecine process
again, but without selecting the “Standard upper/lower” checkbox.
UP01101.Book Page 119 Thursday, March 10, 2005 3:16 PM