Recent content by Fausto Saporito

I am using a tray SP810 and with standard agitation, there is no problem. I see no foam in the developer. I will try with a semi-stand. thanks a lot.

Hello, I am testing a custom developer based on pyro using stand processing (60mins). The film is a Fomapan 100. I ended up with these strange streaks on the negative. I am stopping with water. Any ideas? thanks

Thanks for the recipe, that's interesting, I am trying something similar with phenidone, to make a concentrate, but it seems high levels of hydroxylamine and TEA react in a weird way, creating a sort of paste. Are the above quantities for a working solution, correct?

Yes, I think with ordinary films it's not a good or proper choice. But, for my specific target, a lith film which is generally used to copy negatives or create contrast masks, it's quite good to obtain continuous tones. This is a 4x5 FO5 @ISO3 developed for 15mins in 25mL of concentrate with...

This is the scan. Sorry for the bad quality overall, but I thought it was a totally failed experiment and I didn't put too much care into handling the negative. :) There are no filters applied here, no corrections at all. just the simple scan. There's more fog, IMHO and this can depend on the...

Yes, Alan and it was quite a surprise finding also the p-aminophenol. I knew about PPD used in some henna preparation as well hair dyes, but the aminophenol is quite a surprise.

I tried a stand development, for 60 mins using 15mL of concentrate, so it means Hydroxylamine 0,6g TEA 6mL NaOH 0,45g in 500mL of water. I agitated only at 30min for 10 secs. The result is weird, and maybe it's related to the exhausted developer or the impurities in the tap water I used...

I trie Thanks a lot. It's definitely a good idea. As soon as I finish this batch of "concentrate", I'll do in this way.

Ok, maybe no one is missing PPD ... too toxic and there're good alternatives. But you can find it in very strange places, like henna for eyelashes. Not only PPD but also p-aminophenol :) Below you can find an Ortho litho film (Wephota FO5) developed in Henna for 5 mins. The working solution is...

Today I will try a stand development, it will be interesting :) By the way, I am not sure if this developer is suitable for other kinds of films, i.e. non-lith. Maybe a bigger quantity of hydroxylamine and sodium hydroxide, but I would add also some potassium bromide to avoid fog.

Some notes about stability: I prepared some concentrate in this way, Water300 mLHydroxilamine hydrochloride20 gTEA200 mLSodium hydroxide15 g after 24h in a half-full bottle, I took 50 mL and developed as above. Everything seems ok. As soon as the negative is dry, I will post a scan. I put too...

Yes, Raghu, I agree with your idea. I didn't perform yet any tests about stability. I'll do some tests and I'll post the results.

Thanks. Exactly, the negative is without any damage. Maybe it's this kind of lith film, or the tray development because it's not totally close so the nitrogen can disperse. My next test is with a Fomapan with longer development times.

Hello, In the Encyclopedia of Photography (1974), hydroxylamine hydrochloride is listed as a vigorous developer but unpractical because it releases nitrogen and this destroys the gelatine. Nevertheless, I did an experiment, using the SP810 tray (almost open tray), with this very simple recipe...

Thanks a lot, Mohmad! I was only one time in Cairo, but I have to go back! :) Anyway, with Orwo30 I tamed my film eventually. Now it's your turn to succeed.