To test a darkroom light you need to prefog the paper prior to exposing it to the intended light source. This is basically figuring out how much white light you give the paper before you get anything noticeable discoloration. You then prefog it & redo your test...The bulb may just be too close to the paper.... andy
-----Original Message----- From: pinhole-discussion-admin@p at ??????? [mailto:pinhole-discussion-admin@p at ???????]On Behalf Of Dennis Johanson Sent: Sunday, January 20, 2002 3:03 PM To: pinhole-discussion@p at ??????? Subject: [pinhole-discussion] Darkroom light I am planning to make a darkroom out of a rather limited space (floor about 1 by 1,5 meters), and it seems possible to find room for the equipment necessary - but definitely not anyhing else. I put a yellow-green darkroom bulb in the existing wall socket and placed pieces of photo paper where I intend to have the enlarger as well as the developer tray, and covered one half of each paper (one vertically and the other diagonally in order to be able to identify them later on). Then I turned the darkroom light on for five minutes. Thereafter I developed the pieces of paper in total darkness. Unfortunately the papers had been affected by the light. Then I covered the lamp bulb by a milky-white glass globe, tested once more, and the papers came out shining white from the developer tray. So, as long as I keep the globe on everything will probably turn out fine. Finally, here comes what I am wondering about. Does the globe work like a filter reducing one colour and enhancing another? If so, which? Or does the milky-white globe just function like a dimmer reducing the existing yellow-green light without adding or deducting anything? If anyone can enlighten me I shall certainly appreciate it. Thanks! Dennis
