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Dupe Detection
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Media Composer might mark a special effect optical (such as a blowup) as a duplicate frame.
Double-check your sequence for this possibility before deleting frames.
To activate Dupe Detection:
t Click the Timeline Fast Menu button, and select Dupe Detection. (You can choose to turn on
Dupe Detection for Video, Audio, and Data tracks.)
Dupe Detection occurs instantaneously and retroactively; if duplicate frames already exist in
your sequence, the colored bars appear immediately. As you edit, Media Composer dynamically
displays the duplicate frames.
Methods for Changing Handle Length in Dupe Detection
In 35mm film editing (using the single-strand method), one extra frame, known as the safety frame,
provides tabs for the negative cutter to use when cutting two segments of film together. However, this
frame is always lost during the negative conform.
Example of a splice on a safety frame. Frames 1 and 3 are still usable, but frame 2 has been cut in the middle and is lost.
In 16mm film editing (using the multiple-strand method), labs sometimes use the zero-frame cutting
method to avoid seeing each splice in a 35mm blowup print. In this method, the negative is
conformed along with the handles so that the cuts appear as soft frame handles rather than jumps in
the resulting 35mm blowup.
Different labs have different standards depending on the equipment used. Usually, a minimum of four
frame handles is needed.
Example of zero-frame cutting with multiple strands. The handles are shown in lighter gray.
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