Red adrkroom "safelights" are used with photo materials that aren't sensitiveto that part of the light spectrum. Different films and papers are sensestive to different colors, actualy - it's the colors of light that they AREN'T sensestive to that count - that's the color safelight you can used. Fixed contrastB&W papers use a different safelight than the variable contrast papers. Most modern films are panchromatic - meaning they are sensetive to all colors, so there is no safeleight. Early B&W films were orthochromatic - not sensetive to green, so you could use a green safelight for them. Color materails are sensetive to al colors (I hope!), so there is no safelight that can be used with them. Printing color in trays is an experience - total darkness till it's half way through the fixer.
> > > > Red darkroom safelights are used because the red light is low-energy > > light, and film (silver) doesn't tend to react to it. Not sure if > > the same (or similar) mechanisms are at work there or not. > > Not the same. A red lamp is "safe" only in a black/white darkroom. For film or > for color prints it doesn't work. I mean, the lamp still lights, it's > just that it isn't "safe" and will fog the image. > > Philip, who always unloads his digital camera it total darkness. > > _______________________________________ > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net > -- OK Don, KD5NRO Norman, OK '90 300D, '87 300SDL, '81 240D, '78 450SLC The FSM created the Diesel Benz http://www.venganza.org/
