Archived posting to the Leica Users Group, 2004/11/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]animal wrote: >Hallo i will have to devellop some rolls of agfa copex shortly >Would anyone care to offer any advice? >Thanks,simon jessurun,amsterdam >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information > > > Hr. Animal- Funny you should ask! I bought about 11 of the 30.5m rolls of COPEX a while back, and sold most on The Auction Site That Shall Remain Un-named, with the recommendation of both Technidol, and Rodinal 1:100. Copex is really a thin emulsion microfilm product, but can be successfully used for pictorial images if you can use a low contrast, compensating developer. Having kept a couple of rolls of the stuff for myself, and it being unperforated, I have basically been slitting it and using it in my stable of Minox cameras.! :o) I also have been playing with variatiuons of the Kodak D-23 formulas; there are a myriad of them listed on the web- from single solution formulae to two part D-23 ones. Basically, I thought the so called Gigabit developers were completely outrageously expensive, and if acceptable results can be had with something as mundane as Rodinal and D-23 (both exceedingly economical to use) then so much the better. Rodinal 1:100 ( I shot it at ISO 40 and developed it in a Minox tank for 12" at about 72 degress F; Since the Monox tank holds only 53ml of developer, I am sure that the eveness in development came from the compensating effect of the developer exhausting in the highlights with such a small amount of developer! It gave me a grain pattern on the Minox negatives- 8X11mm and enlarged to 5X7- that was visually similar, at least to me, to Tri-X 35mm negatives. Technidol gave even finer grain, and I am sure that if you play around a bit with it- isn't that what makes this all the more fun?, that you will find a happy medium. So far- I am getting mixed results with the D-23; I am still playing with it. Good luck, and best of light to you! Dan