[RKDinOKC]

The dark room for our print shop you had options, white light, red light, and no light. If the red light anord no light switch was on a red bulb outside the room at the level of the door knob. It only had one door. If the red bulb was on, you don't open the door. The rule was simple, you paid for whateer you exposed opening the door when you weren't supposed to. I never had anyone walk in on me working either red or no light. The no light switch turned off the red and white lights if they were on besides lighting the busy bulb next to the door knob.

We had the elaborate switch and light setup because the guy that did stuff for the print shop wasn't 100& deaf, but couldn't hear if anyone knocked on the door.

We had this one litho camera that was pretty cool. We could make 1:1 copies of 24x36 drawings on a mylar that the image lines were erasable. It was for quickly copying and editing to make a new drawings. It was surprisingly accurate too.