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pv17vv · Posted: Tue May 26, 2009 6:19 am Post subject: Sheet/pack developping tanks

Are Doran and FR tanks the same thing ?
Never saw one in real life, so I must ask.
Georges

Les · Joined: 09 May 2001 Posts: 2682 Location: Detroit, MI

Yes.

Doran is later, not sure when Fink-Roselieve went under, but in looking at a couple of Doran tanks, it's pretty obvious they are using the same molds and machined out "FR" and machined in 'DORAN" a little deeper.

Two words of caution. the lid is made of THREE pieces: the cover, the light trap and a bar. If you don't have all three it won't work.

Two: if you use a straight developer, poor it in, in the dark, then add the lid. You'll have less change of streaking the film this way. With dilute developers or pre-wetting the film, it's not as bad. The Yankee and HR tank has the FR tank beat in this regard as they use removable baskets and one piece lids.
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mopar_guy · Posted: Wed May 27, 2009 2:40 am Post subject: F R tank

For the fr tank, the manufacturer suggests a side-to-side agitation. I have been using one of these tanks and have noticed a tendency to have uneven development (that is streaks on the negatives). A side-to-side agitation with a tipping motion at the end will prevent this problem.

Dave

pv17vv · Posted: Wed May 27, 2009 4:55 pm Post subject:

Thank you Les and Dave.

G