rumor has it that Jim wrote:
> > Isn't there a theory that blue light helps the eyes adjust to night
> > vision
> > or something similar?
>
> Your iris doesn't really react to red light. That's why it is used
> for night-sight-safe lighting such as in military situations, your
> irises will stay open so that your eyes don't need to readapt to
> the dark after looking at something illuminated.
>
> 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.
