Looking through some of old stuff the other day, I came across a very small, 5 1/2 x 2 1/2 Cibachrome drum used to develop a single 4x6 sheet of Cibachrome paper. I'm thinking it might be great for developing a single sheet of 4x5 B&W film. It only holds 1 3/4 oz of chemical. My question, is this enough chemical (1 3/4 oz) to develop one 4x5 sheet of film? My thought is, if that was enough to develop a 4x6 sheet of paper, then it should be enough to do a 4x5 sheet of film. What do you guys think?