Search found 528 matches

by Keith Tapscott.
Mon Oct 15, 2018 9:47 am
Forum: The Digitaltruth Forum
Topic: Rodinal: Using Andersen's formula.
Replies: 5
Views: 1560

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: 5
Views: 1560

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: 5
Views: 1560

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: 16983

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: 5
Views: 1560

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: 16983

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: 24380

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: 4817

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: 2511

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: 17421

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: 11559

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: 17421

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.
by Keith Tapscott.
Wed Mar 23, 2016 1:16 am
Forum: The Digitaltruth Forum
Topic: Spur PDX & Rollei RPX-D.
Replies: 7
Views: 17421

Re: Spur PDX & Rollei RPX-D.

Both Rollei RPX-D and Rollei Supergrain are SPUR products. RPX-D has been made especially for pushing the Rollei RPX-100/400 films. Rollei Supergrain is an almost 1:1 copy of the Amaloco AM74 developer which was sold by Rollei-Maco before 2008 (when Amaloco Photochemicals the Netherlands closed the...
by Keith Tapscott.
Fri Feb 05, 2016 1:11 am
Forum: The Digitaltruth Forum
Topic: Spur PDX & Rollei RPX-D.
Replies: 7
Views: 17421

Re: Spur PDX & Rollei RPX-D.

I found the times for Rollei RPX-D here, but only for one Ilford film and two Kodak films. Unless the developer comes with starting times for the full range of those manufacturers films, then I will not bother with it. This developer appears to be the same as Rollei RHS developer, but at a much lowe...
by Keith Tapscott.
Wed Feb 03, 2016 1:25 am
Forum: The Digitaltruth Forum
Topic: Spur PDX & Rollei RPX-D.
Replies: 7
Views: 17421

Spur PDX & Rollei RPX-D.

Are these two developers one and the same and is there a developing time chart available for them?

I didn't see anything about them on the massive dev chart.