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You Are Here: creation process: post production: editing: Conform From NLE
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Conform From NLE
Editing on 30 fps based systems means that certain guidelines must be followed in order to accomplish frame accurate film conforming.
It must be kept in mind that FLEX or FTL files may be used to digitize material, but not all of the Keykode information on these files is being utilized at 30 fps. The reason for this is that in the telecine transfer, there are phantom frames created in order to convert the frame rate from 24fps (film) to 30 fps (video).
Always edit on "A" frame (determined by looking at the visual "burn-in" Keykode numbers). In the film transfer process, phantom or made-up frames are produced to achieve 30 fps. Editing on any frame other than "A" frame might mean editing on a phantom frame that does not exit on film. Editing on "A" frame ensures a physical match between film and video.
When editing is finished, a cut list must be generated for the film conformer. This process entails conversion of a 30 fps EDL to a 24 fps cut list. 30 fps based editing systems usually require a separate program to do the conversion which can be very costly. Contact the manufacturer of your edit system to find out the cost and availability of program to do the conversion. Some film labs offer this as an extra service. This requires a video output of the finished project, EDL and FTL or FLEX files. This service can take 3-5 days, which should be included in deadline calculations.
The cut list should provide Keykode (in & out numbers), camera roll numbers & footage-frame count for each edit, and accumulative foot and frame count.
An EDL can be beneficial. Duplicate time code on EDL would point out that a given scene has been used twice & that a duplicate film master is needed for conforming.
All effects (Fades & Dissolves) durations should be at 16, 24, 32, 48, 64 & 96 film frames. These are the standard lengths available on contact film printers.
Excerpted from: http://www.24fps.com
This article was acquired on the "fair use" basis.
We encourage You to visit the source website for more information on this topic. |
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