I'm interested in experimenting with stand development. Some people on this forum have had great success with this. I have a few questions:

What developer, what dilution and how long?

I develop 4x5 and 8x10 in large tanks by dip and dunk. That means that the tank is open on top, and the darkroom is completely dark. But I don't feel like sitting in the dark alone for an hour or two. If I open the darkroom door to go out, this will ruin the whole job. How do people solve this?

Thank you in advance.

David