Safelight issues

[Robb Reed]

In reference to darkroom safelights, to what do the initials 'OC' refer?

[Pete Andrews]

It's an old Kodak-Wratten designation for a yellowy-orange safelight filter. In other words a "standard" orange B&W printing safelight.

[N Dhananjay]

Just a guess. Orthochromatic, perhaps? Signifyig its safe for using with orthochromatic materials..... DJ

[The Masked Informer]

More safelight info at:

Kodak's safelight Techinfo (http://www.kodak.com/global/en/professional/support/techPubs/ti0 845/ti0845.shtml)