Search found 178 matches

by Digitaltruth
Wed Sep 29, 2004 1:39 pm
Forum: The Digitaltruth Forum
Topic: Tri-X 320 + Rodinal
Replies: 3
Views: 13413

Although there are no times listed for the new version of Tri-X 320, you can use the old times listed for TX 400 as guidelines. The differences between the emulsions are not great, so you should get solid negatives from any of these times, and can then work out a more accurate time for future rolls ...
by Digitaltruth
Tue Sep 28, 2004 4:58 pm
Forum: The Digitaltruth Forum
Topic: Tri-X 320 + Rodinal
Replies: 3
Views: 13413

Rodinal yields the most grain and contrast at lower dilutions (eg. 1+25). If you use a higher dilution (eg. 1+75) the contrast and grain are reduced. The 1+100 dilution should be used on a test roll first, as it can produce quite flat and thin negs. 1+50 is a good starting point for trial and error....
by Digitaltruth
Tue Sep 28, 2004 4:55 pm
Forum: The Digitaltruth Forum
Topic: B&W Print Scan Quality
Replies: 3
Views: 11449

If you want the best quality you need to scan the negatives, but I presume that isn't your point. A glossy surface paper has the greatest contrast range, and fiber-based paper is capable of giving the best detail and tonality, but I'm not sure how this would be translated in a scan. Its possible tha...
by Digitaltruth
Mon Sep 20, 2004 3:39 pm
Forum: The Digitaltruth Forum
Topic: Development in Jobo ATL 1000
Replies: 1
Views: 12044

Hi Guy,

The standard recommendation is to decrease the times used for handheld inversion tanks by 15%. This is only a rule of thumb, however, as different emulsions respond differently to agitation, but nonetheless it is the best starting point.
by Digitaltruth
Wed Sep 15, 2004 6:36 pm
Forum: The Digitaltruth Forum
Topic: harmless paperdeveloper?
Replies: 0
Views: 11859

Coffee and tea have been experimented with over the years as staining-type developers for film. There is a good article on the RIT web site that also makes reference to using coffee as a print developer. Try it and see. Expect some long development times though: http://www.rit.edu/~andpph/text-coffe...
by Digitaltruth
Wed Sep 15, 2004 6:20 pm
Forum: The Digitaltruth Forum
Topic: Blank Film
Replies: 1
Views: 10618

If the frame numbers do not appear then the film was never developed prior to fixing. The fixer clears everything that isn't developed. Even if the film was not exposed, the frame numbers would appear after development as these are pre-exposed onto the film edge. The usual explanation for this is th...
by Digitaltruth
Thu Aug 26, 2004 6:10 pm
Forum: The Digitaltruth Forum
Topic: Development
Replies: 0
Views: 10144

It depends which film it is. Cut off about 1' (30cm) of unexposed film and develop it for 5-10 minutes in full strength D76 (time does not need to be accurate). Fix and rinse. You should now be able to see the edge markings (frame numbers etc) which are pre-exposed. Hopefully, you will find the name...
by Digitaltruth
Tue Aug 24, 2004 8:54 pm
Forum: The Digitaltruth Forum
Topic: mixing xtol and rodinal
Replies: 3
Views: 17497

Good luck.

Let us know how the experiment works out.
by Digitaltruth
Mon Aug 23, 2004 5:47 pm
Forum: The Digitaltruth Forum
Topic: Help
Replies: 2
Views: 13140

If you go to our main page at http://www.digitaltruth.com and follow the link to the Massive Dev Chart, you will find a push processing chart listed in the menu on the left-hand side. You will get some negatives from this roll, but pushing a medium speed film this far will not produce a great result.
by Digitaltruth
Mon Aug 23, 2004 8:32 am
Forum: The Digitaltruth Forum
Topic: mixing xtol and rodinal
Replies: 3
Views: 17497

Hi Jan, I'm not sure whether this is the best way to proceed due to the different compositions and characteristics of the developers. Have you tried developing Neopan 1600 in Rodinal? You should get plenty of "bite" especially at 1+25 or 1+50. I would also recommend TMax Developer for this film, alt...
by Digitaltruth
Thu Aug 19, 2004 11:00 am
Forum: The Digitaltruth Forum
Topic: FG7 with TRI-X rated at 200
Replies: 1
Views: 11385

Try 10 minutes. It should work out, or be very close. Any time you use is only a starting point, so test any time that seems right and take it from there.
by Digitaltruth
Thu Aug 19, 2004 10:57 am
Forum: The Digitaltruth Forum
Topic: question about emulsion for printing
Replies: 0
Views: 10564

If you are looking to make something like Liquid Light, then this page might be useful: http://www.duke.edu/%7Ejmw22/photogchem/ Alternatively, you could make an emulsion that is sensitive to UV light for use with gum bichromate, cyanotype, kallitype, salt printing etc... for more information look i...
by Digitaltruth
Thu Aug 19, 2004 10:49 am
Forum: The Digitaltruth Forum
Topic: Developing 1950's film. Panchroma Feinkorn Kleinbildfilm?
Replies: 0
Views: 10521

21 DIN is equivalent to 100 ASA/ISO. DIN stands for Deutsche Industrie Norm and is an older European standard which may still be in use, but should have been superceded by the ISO standard. If the film is very old, then it will almost certainly be useless. If it has been exposed the best you can exp...