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In reference to darkroom safelights, to what do the initials 'OC' refer?
-- Robb Reed (reed@nhrc.navy.mil), February 16, 2000
It's an old Kodak-Wratten designation for a yellowy-orange safelight filter. In other words a "standard" orange B&W printing safelight.
-- Pete Andrews (p.l.andrews@bham.ac.uk), February 17, 2000.
Just a guess. Orthochromatic, perhaps? Signifyig its safe for using with orthochromatic materials..... DJ
-- N Dhananjay (ndhanu@umich.edu), February 17, 2000.
More safelight info at:Kodak's safelight Techinfo
-- The masked informer (green.lantern@dc.net), February 17, 2000.