psvensson said:
In my experience, the film speed claims on the Diafine box are way exaggerated, at least if you're measuring shadow detail. It gives high contrast with many film, i.e. a "push," but it doesn't do much for shadow detail. True speed in Tri-X was about 400 when I tried.
Really? That's just completely the opposite of my experience. In fact, Diafine is designed to develop to exhaustion. That's why times (3 minutes in Solution A, 3 minutes in Solution B) don't matter all that much as long as you get at least 3 minutes in. It is a compensating developer, and to me, that means you get great shadow detail. In fact, some of the best shadow detail I've ever seen - it is nearly impossible to lose details in black or blow them out in highlights. The problem from my perspective is that it spreads out contrast so much that you really need a high-contrast scene to render it properly (ie with midtones). A low-contrast scene may come out quite muddy.
However, since Diafine is really good for using with available light (ie, high-contrast by definition), then it does well with those tonal values and shadow details.
Just my experience, but I have never met anyone who claimed that Diafine didn't handle shadow detail well - some have complained just the opposite.
I took all these with Tri-X rated EI 1250, processed in Diafine, 35mm.
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