The Washington Post, February 19th, 1988
Q. Since infrared film must be loaded, unloaded and processed in total darkness, is it possible to use this film in some of the newer cameras (such as the Canon T-90 or the Pentax SF1), which have windows on the back through which you can see the film cartridge? Can the infrared be exposed through that window? A. Those identity windows are part of the DX system of automatic film speed settings. They have been on most cameras made in the last three years. I spoke to my retailer, several photofinishers, two camera manufacturers and experts at Kodak. No one has experienced any exposure problems. ...
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