Originally Posted by
Andrew O'Neill
I've been using BTZS tubes for both 4x5 and 8x10 for over 20 years and never had an issue with them. I'll admit though that I do not like the newer 8x10 black tubes. They are much lighter than the older grey tubes. The grey tubes sit evenly in the water, and spin with little effort. In Fred's videos it shows him shaking the tubes initially to agitate. This is just not necessary as it twists the film, and forces it, especially 8x10, up into the cap. I also had some sheets corners scratch the emulsion. Rolling in a tempered bath is all that is required. As far as having lights on, I always open the tube after development under my safelight when I stick them in the stop. Then I pull the film out from the tube and slip into the fixer. I have never had any fogging issues.
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