Hello All,
Curious. I rent a darkroom space that has been in use since the 80's. I was cleaning off a shelf and found an envelope marked Ruby Lith Filters. They are round and are about 3 inches in diameter, was wondering what is their purpose. I have guesses but figured someone could fill me in.
thanks
jb
Curious. I rent a darkroom space that has been in use since the 80's. I was cleaning off a shelf and found an envelope marked Ruby Lith Filters. They are round and are about 3 inches in diameter, was wondering what is their purpose. I have guesses but figured someone could fill me in.
thanks
jb