Search found 531 matches

by Keith Tapscott.
Thu Feb 14, 2019 8:47 am
Forum: The Digitaltruth Forum
Topic: Exposure and development of B&W Films.
Replies: 0
Views: 36

Exposure and development of B&W Films.

There have been a lot of questions posted here lately about uprating film speeds and push processing, particularly by beginners. Personally, I like to do the opposite and err towards the generous side of exposure and controlling contrast by adjusting the developing times to avoid over development. T...
by Keith Tapscott.
Fri Nov 16, 2018 10:04 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 7
Views: 3215

Re: Rodinal: Using Andersen's formula.

Thanks for posting. I've been developing & printing film since 1971 and have never used Rodinal - I have been in the HC-110B camp since around 1976 (just finished 12 rolls of HP5+ & 2 rolls of Delta 3200 tonight) and rarely leave. When I do step out it's D-76. I just might give mixing my own Rodina...
by Keith Tapscott.
Sat Oct 27, 2018 8:57 am
Forum: The Digitaltruth Forum
Topic: Help needed with Kienzle A69S
Replies: 1
Views: 633

Re: Help needed with Kienzle A69S

Hi, I am a user in public darkroom in Aarhus, Denmark. We have just been given a very generous gift, a Kienzle a69s. It is by far the most advanced enlarger we have, but it came without a manual and I wondered if somebody could help me understand what the d-max control does (none of our other enlar...
by Keith Tapscott.
Mon Oct 15, 2018 9:47 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 7
Views: 3215

Re: Rodinal: Using Andersen's formula.

Yes that would be one option. And completely worry free. But can I ask you, if you looked up the book with its information? It would be interesting to know if you had done so. Just asking? Than You Kenny E Hi Kenny, Is this the book you referred to? https://archive.org/details/organicphotograp00wei...
by Keith Tapscott.
Fri Sep 14, 2018 4:24 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 7
Views: 3215

Re: Rodinal: Using Andersen's formula.

To Kenny E.

How authentic are these formulas? https://www.digitaltruth.com/articles/h ... odinal.php

I always thought that Agfa used P-Aminophenol base rather than the hydrochloride. A caustic alkali is listed in Rodinal rather than carbonate.

Also, I am not aware of Glycin used in Microphen.
by Keith Tapscott.
Tue Aug 07, 2018 7:12 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 7
Views: 3215

Re: Rodinal: Using Andersen's formula.

Yes that would be one option. And completely worry free. But can I ask you, if you looked up the book with its information? It would be interesting to know if you had done so. Just asking? Than You KennyE Hi Kenny, I have not read the book you mentioned, but what differences have you observed betwe...
by Keith Tapscott.
Tue Aug 07, 2018 7:04 am
Forum: The Digitaltruth Forum
Topic: Is my Microphen formula correct?
Replies: 18
Views: 19240

Re: Is my Microphen formula correct?

The formula I have seen which seems most authentic was posted by pentaxpete. He said he got it from an Ilford employee just as they closed their plant in Brentwood IIR correctly. Hopefully he will reply here soon. Sodium Tripolyphosphate 3.4g Sodium sulphite 100g Sodium metabisulphite 0.65g Hydroqu...
by Keith Tapscott.
Mon Aug 06, 2018 8:36 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 7
Views: 3215

Re: Rodinal: Using Andersen's formula.

I think I would rather just buy it as sold by Adox.
by Keith Tapscott.
Mon Aug 06, 2018 8:31 am
Forum: The Digitaltruth Forum
Topic: Is my Microphen formula correct?
Replies: 18
Views: 19240

Re: Is my Microphen formula correct?

The formula I have seen which seems most authentic was posted by pentaxpete. He said he got it from an Ilford employee just as they closed their plant in Brentwood IIR correctly. Hopefully he will reply here soon. Sodium Tripolyphosphate 3.4g Sodium sulphite 100g Sodium metabisulphite 0.65g Hydroqui...
by Keith Tapscott.
Sat Apr 21, 2018 8:16 am
Forum: The Digitaltruth Forum
Topic: FX39
Replies: 22
Views: 26665

Re: FX39

Unfortunately, Fuji 100 Acros will be discontinued this year.
by Keith Tapscott.
Thu Apr 05, 2018 9:31 am
Forum: The Digitaltruth Forum
Topic: 120, D-76 (1:1), Tri-X 400 Underexposed
Replies: 3
Views: 5507

Re: 120, D-76 (1:1), Tri-X 400 Underexposed

As already mentioned, it is almost certainly an exposure issue. Try exposing at the meter setting and then take another photo at a whole stop more generous. You will find that the tonality is aesthetically much nicer if you err towards slight overexposure with most B&W films. By sticking with this c...
by Keith Tapscott.
Thu Apr 05, 2018 9:10 am
Forum: The Digitaltruth Forum
Topic: Ilford Hypam
Replies: 2
Views: 3081

Re: Ilford Hypam

I always use it diluted 1+4 for films and papers as recommended by Ilford with no problems.
by Keith Tapscott.
Thu May 05, 2016 12:15 am
Forum: The Digitaltruth Forum
Topic: Spur PDX & Rollei RPX-D.
Replies: 7
Views: 18205

Re: Spur PDX & Rollei RPX-D.

It's time to give some feedback from the developers I have tried recently. Both the Rollei RHS and Adox FX39 are excellent developers if you want the convenience of a liquid concentrate.
Of the two, the FX39 seems to give finer grain and smoother tones while maintaining good sharpness.
by Keith Tapscott.
Sun Apr 03, 2016 2:15 am
Forum: The Digitaltruth Forum
Topic: Ilford ULF 2016.
Replies: 0
Views: 12372

Ilford ULF 2016.

Link for ultra large-format B&W films and other unusual sizes.

http://www.ilfordphoto.com/pressroom/article.asp?n=215
by Keith Tapscott.
Thu Mar 31, 2016 3:33 am
Forum: The Digitaltruth Forum
Topic: Spur PDX & Rollei RPX-D.
Replies: 7
Views: 18205

Re: Spur PDX & Rollei RPX-D.

Robert, have you ever made any direct comparisons with RHS/AM74 and FX39? Both are said to provide sharp negatives.
I want to try something sold as a liquid concentrate for a change rather than a developer sold as a dry powder to make a stock solution.