Quote Originally Posted by newcan1 View Post
If I am developing only one film, can I leave the top reel empty, use only enough chemistry for the one reel, and still do inversion? would air in the tank cause any problems?
Yes, you can do a single roll in a two-roll tank. I would put the empty reel on top, just to keep things from bouncing around.

The air space should pose no problem. You only need enough chemistry to cover the roll being developed.

Agitate gently since the low volume of liquid will cause much more turbulence than normal.

- Leigh