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Author Topic: Cyan Track Question Mitchell Dvoskin Phenomenal Film Handler Posts: 1869 From: West Milford, NJ, USA Registered: Jan 2001 posted 02-24-2004 08:56 AM                     Does the Cyan track fail to block the ultraviolet or infer-red spectrum?  |  IP: Logged Greg Mueller Phenomenal Film Handler Posts: 1687 From: Port Gamble, WA Registered: Jun 99 posted 02-24-2004 09:05 AM                        It fails to block infrared  |  IP: Logged Mitchell Dvoskin Phenomenal Film Handler Posts: 1869 From: West Milford, NJ, USA Registered: Jan 2001 posted 02-24-2004 09:15 AM                     Thanks...  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 02-24-2004 09:28 AM                        Here are the spectral dye density curves for the cyan, magenta, and yellow dyes in Kodak VISION Color Print Film 2383: http://www.kodak.com/US/plugins/acrobat/en/motion/products/curves/ti2397d.pdf Note the cyan dye has peak density at about 660 nanometers, so a red LED is a good match for optimum signal from the cyan dye. The dyes are all fairly transparent to infrared and ultraviolet energy.  |  IP: Logged

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