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...

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...

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...

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...

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.

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...

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...

I think I would rather just buy it as sold by Adox.

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...

Unfortunately, Fuji 100 Acros will be discontinued this year.

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...

I always use it diluted 1+4 for films and papers as recommended by Ilford with no problems.

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.

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

http://www.ilfordphoto.com/pressroom/article.asp?n=215

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.