> I was talking with my martial arts professor recently, and he noticed that
> I'd stashed several boxes of 4x5 in the fridge. The conversation turned to
> photo-related topics, as he had done some press coverage in the 50s/60s.
>
Tox,
While I have never tried hypersensitizing in ammonia vapors, I
have tried hpersensitizing in heated Hydrogen Peroxide vapors. It did seem
to help minimize the loss of shadow detail with a two stop push. I have
only used it three times, as I usually opt for TMZ when I need the speed,
rather than "push" a 400 speed film. I still prefer the look of TMZ, and
the hypersensitizing treatment is a bit of a hassle compared to normal
processing of TMZ. The technique is fully described in Steve Anchell's
"The Darkroom Cookbook", published by Focal Press.
Maxim M. Muir
See the "Maximum Monochrome" homepage at:
http://www.nfinity.com/~mdmuir/