Interesting observation relistan! I grow up in country that was part of ORWO market, Yugoslavia. I have the same book but from 1986 (not sure how much they are different??).
ORWO had very good selection of packaged developers, like: for negatives R09 (Rodinal), A49 (Atomal) and for paper B104 and N120. I was always interested to find original formulas for those two positive developers. As for recipes from the book, they are most likely identical or very, very similar to pre war Agfa recipes. As far as I can remember, I only made their BW reversal formula and worked very well with EFKE KB17 film. Back in the day I was also looking to make some of their hight contrast, graphic or lith developers for their MA-8 and DK-3 films and some of warmer tone positive developers. Will follow this thread for sure. Good luck in your endeavour!
Some of them were sold in the US made by Agfa Ansco which became GAF.
Agfa 44 is Agfa Asco/GAF 17 for instance this is the Agfa Buffered Borax MQ developer, it was available commercially in the US, it's very close to Adox Borax MQ (EFKE FR-2_ which I have used in the past. As mentioned Orwo were the original Agfa company I have two earlier Agfa Rezeptes before they changed their name to Orwo. Their toners are very good.
ORWO was one of the largest manufacturers in the world (15,000 employees) and got one of the largest ranges of films, from amateur, commercial, industrial up to scientific use.Or maybe ORWO themselves only had slower films and that's why.
-) The Agfa brand predated the Orwo brand just as the firm was indeed the firm Agfa beforeThank you!
The preface in this book says that VEB Filmfabrik Wolfen - Fotochemisches Kombinat formed in 1970 from from 5 other East German companies. Looks like the ORWO brand predates that from about 1964, as Ian says, trading as Agfa before that.
ORWO had very good selection of packaged developers, like: for negatives R09 (Rodinal), A49 (Atomal) and for paper B104 and N120. I was always interested to find original formulas for those two positive developers.
An interesting, I _assume_ very high contrast developer, ORWO 22 is listed as a "cinema title developer", presumably to make lettering stand out. The main agent appears to be hydroquinone:
ORWO 22, to make 1L:
Times 4-5 minutes, pH 10.3
- Water softening agent 2g
- Metol 0.8g
- Sodium sulfite 40g
- Hydroquinone 8g
- Potatssium carbonate 50g
- Potassium bromide 5g
If you've ever wanted a developer with times around 30-45 seconds, there is one of those, too!Labeled "Fast developer". Seems rather uncontrollable if you ask me.
@relistan Sub pH 7 developers? Can you confirm it? Is there perhaps another solution that is added to this developer, containing an alkali?
You have to realise that Agfa/Orwo developers are largely mirroring Kodak, Ilford, Geveart, Dupont and many other companies sure there's very slight differences but hey loads of companies made developers like Rodinal, Ilford Certinal (1907/8) , Kodak Kodinol (UK and Europe only) but many others.
for something called "K-plates"
Maybe, over upcoming holidays I will have a chance to scan recipe part of the book? Can you scan yours and we can exchange it?
Those are photographic plates for nuclear science. I already hinted at Orwo's scientific range.
These plates need special developing. Thus one cannot compare such with processing of classic emusions.
ORWO was one of the largest manufacturers in the world (15,000 employees) and got one of the largest ranges of films, from amateur, commercial, industrial up to scientific use.
Their fastest films from the amateur/commercial range was the NP 30 (30 DIN / 800 ASA)
I am from West-Germany and back then I never ever came across any of their products. Though their films had been marketed here.
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