panchromatic
Member
Is their any difference? I heard that you could load black and while in red safelight, but I'm not sure if that is true?
Neal said:Dear Ryan,
Your handle should be the clue.<g> Orthochromatic film (generally only blue or blue-green sensitive) can be handled under a safelight. Panchromatic film is sensitive to the entire visible (and then some) spectrum.
Neal Wydra
panchromatic said:We had an arguement about it but she insisted it was true. Thank you
John Cook said:Red safelights were used for orthochromatic lithography
film which could not see red. Extremely interesting and
useful material if you can find it.
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