Archived posting to the Leica Users Group, 1999/08/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]As far as I am concerned, Mark is the B&W LUG person that should be very carefully listened to. He has been professionally doing this for a very long time. When I get my darkroom remodel finished, I will be looking to Mark for B&W advice. At Brooks Inst., 75% of the curriculum (1960/61) was B&W. I worked as a commercial photographer 1961 - 1969 and about 75% of my work was B&W. The Dektol time I quoted is something that I used in school and in business. But Mark has actively doing B&W printing for decades. So listen to him. Thanks Mark, Jim At 01:49 PM 8/9/99 -0700, you wrote: >With something along the lines of Dektol 1:2 and Multigrade Fiber I am now >developing for a minute and a half. Why? >If I pull the print out at 1 minute and 45 seconds the extra 15 seconds doesn't >produce a noticeably different print. In other words: things are not happening >fast. I don't pull my print out when things are happening fast. That's my take >on "Total" development. >With the Multigrade Fiber WARM (in that nice chocolate box) I give it 2 minutes >because at a minute and a half I can plainly see that things are still happening >fast. I don' like to interrupt it while it is developing. If I jump the gun the >blacks will noticeably suffer and so might the highlights. Lack of "Total" development. > >I have in some cases used extending print developing time to offset longer >enlarging times and I have used Glycin, a developing agent which requires at >least 3 minutes but loves 5. > >I set my darkroom timer so it beeps every 30 seconds. I lift, drain and flip >over every thirty seconds. IT is upsidedown in the middle 30 seconds. I like to >watch it develop. > >Because of the extremely wide variety of safelights I've got going in my >darkroom at the same time the chances of some fog occurring from "unsafe" light >is high. So I often put in a capful (5-10 mls) of additional restrainer into my >developer to counteract this. >Ansel Adams used to infer that one should do this as un scienfic or un- >Ansel-like this might sound. >The restrainer in Dektol is potassium bromide and you can make a 10% solution of >by putting 100 grms in a liter of water. Then you can use it by the capful to >clear you lighter areas when they need it; other than safelight fog there is old >paper. Most often it is just the requirements of your particular Negative. > >The other stuff which is more cool literally to clean up your prints with is >Benzotriazole which has been sold in tablet and liquid form: Kodak anti fog #1 >or Edwal Orthazite??. > >The B&B solution > >Edward Weston in his ancient daybooks refers to the mystical "B&B" solution. >(Maybe it was Minor White) Which he used to obtain not cool, not warm but >neutral silver tones in his prints. However he never put down the formula as to >what that was and it was lost to us: > >UNTIL NOW >I have rediscovered the lost mystical "B&B" solution. After much channeling I >have determined that "B&B" means Bromide and Benzotriazole although it might be >Benzotriazole and Bromide. Get back to me on that one. >100 mls of Bromide and 10 of Benzotriazole per liter. So a 10 ml squirt gives >you as they say in Jewish cookbooks "A nice amount" of each chemical: .1 ml of >Benzotiaozole and 1 grm of Bromide. >Your prints will almost look like they don't need toning. >Mark Rabiner >