Film-Tech Forum ARCHIVE: loops

This is topic loops in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Victor Garcia (Member # 7158) on 01-02-2013, 11:34 AM:

What are the names of 35mm loops that I need for checking my proyectors??

thanks

Posted by Scott Norwood (Member # 30) on 01-02-2013, 12:24 PM:

Assuming that this is for 35mm (no 16mm or 70mm) and optical sound only:

For picture: PA35 (often called "RP40").

For sound: SMPTE buzz track and Dolby pink noise (cat. 69P) at minimum for a mono system. Add Dolby Tone (cat. 69T), left/right (cat. 97), and possibly illumination uniformity (cat. 566) for an analog Dolby system. You will also want a test reel of a film that you know well to verify the quality of the sound alignment. The sound alignment procedure is explained quite well in the Dolby manuals , and the principles are also applicable to other makes and models of processors.

Posted by Victor Garcia (Member # 7158) on 01-23-2013, 04:56 PM:

thanks!