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Table Of Contents
Checklist: Editing Film Reel Footage in Media Composer
1434
If you are linking to DPX files, necessary information such as KeyKode (key number) and
timecode is inserted as metadata into each DPX file during the scanning process. If the DPX files
do not contain the timecode information, an ALE is required in order to make the necessary
correspondence to the associated DPX files. The ALE is usually supplied by the film-scanning
facility or output by Media Composer.
In Avid DS, you can scan and import files directly from the folders containing the raw file
footage. This allows you to refine the look using the established offline settings. You can open a
4K RGB sequence, switch into proxy mode, then grade and output to HDCAMSR 4:4:4 for
screenings. For final film out, you can then go back to full resolution 4K and render out .DPX or
Cineon images with the proper LUT (look-up table) for the film recorder.
For detailed steps on this workflow, see “Checklist: Editing Film Reel Footage in Media
Composer” on page 1434.
Checklist: Editing Film Reel Footage in Media
Composer
A 24p or 25p project is one that uses 24p or 25p media, which is created and stored in your Avid
editing application. In most cases, the source footage is film shot at 23.976 fps, 24 fps (for 24p)
or 25 fps (for 25p), however new technology is introducing 24p and 25p videotape formats, both
for cameras and VTRs.
Progressive media is composed of single frames, each of which is vertically scanned as one pass.
Avid editing applications create 24p media by combining (deinterlacing) two video fields into a
single full, reconstructed frame. For NTSC film-to-tape transfers, Avid editing applications
create 24p media by removing the extra fields inserted by the 2:3 pulldown process and by
creating progressive frames.
The 25p format is primarily for use in countries where PAL video is standard. When you transfer
25-fps film footage to 25-fps PAL video, no modifications are necessary due to matching frame
rates.
This section outlines the workflows for 24/25-fps film source. Certain steps will have differences
based on the project format and source footage you are using. Follow these steps in the order that
they are listed, and return to this checklist each time you complete a step.