Quote Originally Posted by polyglot View Post
I note you have an error on your product page though, it says "Capacity 5L: 50-80 rolls of 35/120 or 100-160 sheets of 4X5". Actually it should do 200 to 320 sheets of 4x5 since those are only 20 sq.in each compared to the 80 sq.in in a 135/36 or 120 roll.
When the developer is used as one shot, in a rotary process, the minimum tank capacity required per sheet or roll film (about 50ml and 100ml respectively) gives us the number posted.

If Dev is reused (totally possible with this kit), capacity can be doubled as you note and this info is included in the instructions provided with the kit .