Quote Originally Posted by clayne View Post
How many people use enlargers in parallel or at the same time? Or with multiple people printing at once? I've often wondered in home darkrooms how much the edge fogging is if I wanted to have a friend print at the same time.

I mean it's a separate light source so it should fog but you see multiple enlarger setups in schools, labs, etc. and I've always wondered how they dealt with it or how much of a problem it was. I couldn't imagine that the matte black surrounds prevent all fogging.
I have experimented with working up two negatives at the same time on different enlargers. I have found it does not suit me well. Kind of like playing two games of chess. I can't really concentrate on both negatives and keep both dodging/burning sequences straight.