Sorry, no formulas, but I did find a reference to them in the Film Developing Cookbook.
Paterson FX 39 and Acutol (FX 14) are mentioned on pg 55 and 56.
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Sorry, no formulas, but I did find a reference to them in the Film Developing Cookbook.
Paterson FX 39 and Acutol (FX 14) are mentioned on pg 55 and 56.
As I mentioned a few days ago, I expose my AZO in the bathroom, with 4 40-W bulbs about 4 feet (~1.2 m) above the sink as my light source, with the frame on the sink. The walls are painted white ...
I don't have a darkroom, but my bathroom works fine for me: 4 40W clear bulbs a few inches to the left and right of each other, roughly 3-4 feet above the sink. My frame goes on the counter ...