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Author Topic: LED readers Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 05-13-2003 06:01 PM                    Steve, will IR LED's also work with the DD CCD array?  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 05-13-2003 08:50 PM                     The change to cyan can hardly be called an "upgrade"...in fact, it is properly called a DOWNGRADE...it is inferior to redeveloped tracks. The only benefit is to the labs and to the red reader manufacturers (the biggest one being Dolby). I'd encourage the exhibitors to call their lawyers and sue a distributor for forcing a cyan track on them...or they could provide the red readers with the print (and a check for its installation). Steve  |  IP: Logged Paul Trimboli Master Film Handler Posts: 274 From: Perth Western Australia Registered: Dec 2002 posted 05-14-2003 07:46 AM                     I have noticed that on soundtrack with High Magenta they really make the gate dirty, the rag we use to clean the gate is full of that colour, would Cyan do the same? Does normal B/W do this but you just can't see it on the metal?  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 05-14-2003 08:33 AM                        quote: I have noticed that on soundtrack with High Magenta they really make the gate dirty, the rag we use to clean the gate is full of that colour, would Cyan do the same? Does normal B/W do this but you just can't see it on the metal? The only difference between traditional (magenta+cyan+silver) tracks and "high magenta" (magenta+silver) is the color of the exposure given the soundtrack area during printing. The film stock is the same, and silver is redeveloped in both cases. "High Magenta" tracks have the advantage of having cross-modulation distortion characteristics that are more compatible with today's MIX of red LED and tungsten light readers. If you are seeing magenta debris, it's likely you have some abrasion of the film. The color is magenta because that's the topmost imaging layer on print film, not because it is a "high magenta" track. The cyan layer is the middle imaging layer, so it should be less affected by abrasion. The emulsion of silver-image B&W prints can be abraded, but any debris would be white or gray in color.  |  IP: Logged

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