Refinal and Agfa films

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I have been looking for Agfa Refinal Developer, but no specialized store has this kind of a developer. Why Refinal is better than Rodinal (for APX 25,100,etc.)?

How do you figure out what developing time to use when you get the developer a bit warmer than the usuall 20 C? Is there any trick in testing the times and not ruining a lot of rolls?

Thanks

Jan Jedlicka Czech Republic

-- Jan Jedlicka (janjedlicka@atlas.cz), February 19, 2001

Answers

Regarding Temperature, Tetenal says multiply time with 0.85 for 22°C and 0.65 for 24°C. Have you had a look at Agfas website, Data sheets, you should find time versus temperature curves for Agfa films in Agfa developer. (http://www.agfaphoto.com/library/datasheet/film/index.html)

Refinal is said to be a compensating developer and most films can be used with same time. Look into the Agfa datasheet for b&w processing. I do not have personal experience with it, as I use two bath developers. Calbe A 03 is said to be similar.

Regards,

Wolfram

-- Wolfram Kollig (kollig@ipfdd.de), February 21, 2001.


Dear Mr. Jedlicka,

one cannot say that REFINAL is better than RODINAL. It depends what you want. First of all the two developers are very different. REFINAL is a Powder and for machine processing. It can be replenished. RODINAL on the other hand is a liquid concentrate and for one shot use. REFINAL gives fine grain, RODINAL does produce very sharp negatives and since it can be diluted up to 1 + 100 it can be used for compensating the motive contrast. Regarding your second question, it is possible to process with a higher temperature than 20°C. As far as I know there is no trick or factor where you could say if I have time x with 20°C than I have to multiply this time with factor x and I have the processing time for a higher or lower temperature. If you could sent me your address I will send you a brochure where you can find tabels which give you some hints how to process with higher or lower temperatures. Or you can contact our subsidiary in the Czech Republic. The address is: Agfa S.R.O Litvinovska 609/3 Praha 9-Prosek The responisble person is Mr. Jan Bartak tel. 0042 02 66101 521

I hope this information helps you. If you have further questions please do not hesitate to contact me.

Kind regards Wolfgang Holz Product Manager Marketing Chemicals

-- Wolfgang Holz (wolfgang.holz.wh@germany.agfa.com), February 21, 2001.


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