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Topic: laser or reverse scan LED to read old variable density mono?
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Richard P. May
Expert Film Handler
Posts: 243
From: Los Angeles, CA
Registered: Jan 2006
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posted 05-21-2007 12:18 PM
Speaking from a restoration lab standpoint, there is no problem running density tracks with red LEDs. We are using Kineton readers, and much of our work involves printing from original density tracks. They play perfectly well. The one problem that can occur is a color print with a density track. If the print is processed conventionally, with hi-magenta color in the track, it will filter out much of the red LED light, resulting in either very poor or no sound. I was told this happened recently at the Alex Theater in Glendale CA, running "Desk Set". For the most part, when a restoration is done, a new track negative is made. This results in a modern VA track, so no problems.
DM
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