Response to Pyrocat HD in tubes?

You don't say what size film, but I'm assuming 4x5. I don't have any experience with rotary processors, but... At 15 cents per liter of working solution, Pyrocat-HD is the cheapest film developer you can buy or mix. So, if I were you, I would try it with 100 ml. I regularly develop whole rolls of 120 sheet film (about equivalent to one 8x10 sheet film) in 500 ml., so I think 100 to 125 ml. would be about right for a 4x5. By the way, Pyrocat-HD is based on pyrocatechin, not pyrogallol, but both give good staining action.

[ Previous | Next ]