From: Christina Z. Anderson (tracez@mcn.net)
Date: 01/18/01-08:20:59 PM Z
I have been trying to reticulate film to not much luck. I have used
sodium carbonate, heated to coffee pot temp, 30 g to 500 ml water, on Tmax
100, TXP, and another film (gulp; can't remember the other one). None
reticulated. A couple had been developed in D-76 and one in pyro with a non
hardening fixer. I have had the film, large and med format, in the "soup"
for even up to 3 hr with no reticulation. There was no veiling of the
emulsion either. The emulsion only budged a bit with hard brushing.
Question: what is the difference between sodium carbonate and sodium
bicarbonate, common baking soda; are both interchangeable? Is sodium
carbonate more caustic?
Has anyone had great luck reticulating and, if so, how? Which film?
How was film developed? Did you reticulate immediately after developing,
while still wet, or use film that had been developed a while back?
And, off topic of reticulation: I am looking for the sharpest aperture
on the Mamiya 7 80 mm lens; I used to have bookmarked a lens resolution
website but cannot find it; where would I find the info about the sharpest
aperture? I presume it is two stops down from wide open, making it F8, but
does anyone know for sure?
Chris
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