I have just started using an expert drum for 5x7 and 8x10. I have been using HC-110 at dilutions D and E because at B the development times (for my 4x5) were too short with the rotary processor method. I mix directly from syrup, not from stock. Using Covington's HC-110 page (http://www.covingtoninnovations.com/hc110/), I calculated that I would need a minimum of 4ml of syrup per sheet of 4x5. This comes out to 0.2 ml per square inch which would result in a minimum of 7 ml per sheet of 5x7 and 16 ml per sheet of 8x10.
Here is the dilemma. At dilution D (1:39) from syrup, I would need 624 ml of solution for ONE sheet of 8x10. If I did 5 sheets in the drum, that would be over 3 litres. That seems like a LOT of solution and a LOT of developer. Is it time to go back to trays or switch developers? The advantage of HC-110 for me is that I don't develop all the time so mixing from syrup is cost effective, rather than using a developer that requires a stock solution first. What are some other possibilities? Am I missing something?
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