Hello! By mistake I underexposed some 4x5 foma (100 iso) negatives with 1-2 steps (depending on the case) Instead of 2 seconds for example I set half of the second on the dial(also a "2" number, that why the confusion, I was sleepy and in a hurry But I rated the film at 50 iso, so in theory it should be just one step. Are studio photos (portraits) with a dark background.
I would prefer to use hc 110 or rodinal (I can't buy other stuff) What do you recommend to adjust in this case? It is possible to compensate in some way?
Thank you very much!