Quote Originally Posted by Nige
I like my lenses that have illuminated aperture scales... one doesn't and it usually involves turning the room lights on to check it's right!
I usually resisted the temptation to turn on room lights with an enlarging paper in the easel. Finally I took a cheap, throw-away promotional pen light, and taped a piece of rubylith to the end. Now I can keep the room lights off and find f stops with a little concentrated safe light.