Finally, a simple, easy to load system for processing 4x5 sheet film!
The SP-645 Developing Tank, from the designers at Stearman Press, is the larger version of the SP-445 - the most popular 4x5 inversion processing tank available!
The SP-645 processing system is the easiest system for processing 6 sheets of 4x5 film and uses the least amount of chemicals - only 20 ounces of solution needed.
Learn more: Intro to SP-445
Notes: You cannot use an SP-445 lid on the SP-645 Max since the hold down tabs have to be modified!