Archived posting to the Leica Users Group, 2004/01/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:44 PM 1/8/2004 -0500, A. Lal wrote: >Hi Nathan, > >Just a few questions regarding Jobo. > >I am interested in processing my own B&W film after a lapse of 20+ years >and am wondering if there is any way to consistently process multiple >rolls at a time using a Jobo and still get the same sort of results as >traditional one-at-a-time tank developing ? You will get consistency since the Job maintain constant agitation and water temperature. HOWEVER - high acutane developer supposedly do not work as well due to the constant agitation. The conventional wisdom is to shorten the development time by 20-30% and lower the ISO of the film when shooting by half. I have done exactly two rolls of T-MAX400 in my Jobo. They look fine, but this is by eyeball and loupe only, and not under an enlarger... My big problem is that I use scanner/computer once the film is developed, and the B&W attracts too much dust (I don't have a darkroom at all), so for the time being, I am staying with using the Jobo on slide films. Work great there. >Do you have to change dilutions, developing times or temperatures when >using a Jobo as opposed to a tank? The reverse bath needs to be 60% diluted. Check the Kodak/Jobo documentation. // richard (This email is for mailing lists. To reach me directly, please use richard@imagecraft.com) - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html