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A question about film developer...
Old 06-16-2006, 04:26 PM   #1 (permalink)
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Only recently did I find out that Agfa doesn't make any film photo products of any kind anymore ($!)*))*!##!!!!!!) -- yes, I'm always way behind in the game -- and I was thinking of stocking up on fresh Rodinal wherever I can find it.

Since it's only good for about a year in an unopened bottle from the manufacturer though, I was wondering if it's possible to store bottles in the fridge or something to keep it from oxidizing so quickly, or would that affect the chemistry?

Thanks for the help!

Sam
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Re: A question about film developer...
Old 06-16-2006, 05:08 PM   #2 (permalink)
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The short answer is "I don't know". In the past I've kept factory-sealed stuff on the shelf for a couple of years without any noticable problem (Microdol-X and HC-110). However, once you open the bottle the timer starts and I wouldn't trust anything that was full or nearly full after a year. More than 1/3 empty and I'd toss it after two months.

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Re: A question about film developer...
Old 06-16-2006, 05:27 PM   #3 (permalink)
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From another forum
"Here in the UK I have been using R09 developer, which is marketed as the original formulation of Rodinal. Readily available from several manufacturers, I have used it interchageably with modern Rodinal. A US source is:
http://jandcphotography.com/ "
You might also find
http://www.digitaltruth.com/chart/unlisted.html and http://www.greenspun.com/bboard/q-an...?msg_id=003rBL
interesting.

BTW, my professional advice is, if you elect to formulate it yourself, wear safety goggles and a dust mask. Strong alkalis are tough on eyeballs, and quinones and related compounds moderately toxic and prone to cause allergic reactions.
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Re: A question about film developer...
Old 06-16-2006, 05:51 PM   #4 (permalink)
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Thanks for the responses guys! I'm developing some stuff that's pretty important, so I'm using all recently-bought and fresh chemistry, but I may try experimenting with storing some chemicals in the fridge for a while and seeing if that effects anything.

Chip -- I've got some other chemicals I was about to throw out since they're about a year old unopened, but since you've tried unopened chemistry that's a couple of years old without anything noticeably negative, I'll go ahead and keep it to see if it's still okay. That'll save me at least $100, so thanks for that.

John -- Thanks for those links. Now that you mention it, I think I've heard of R09, but I've never used it. I just ordered the Photographer's Formulary's mix of Rodinal the other day, and like the R09, it's the "pre-war" formula (I don't know how old the Rodinal formula is, so I don't know for sure which war that refers too). From what I've heard though, the pre-war and post-war/updated formula from Agfa functions almost identically, so whenever the Agfa Rodinal well's run dry, I'll be playing with R09 and Photo Formulary's version to see what difference there is, if any. And absolutely, I learned my lesson about the safety goggles when playing with pyro (splashing that in your eye HURTS!!!), and so now whenever I mess with chemistry in powdered form, I put on a dust mask, too. Even if it's not as wicked as pyro, it can still mess with you.

Thank you both for the help!

Sam
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Re: A question about film developer...
Old 06-16-2006, 06:39 PM   #5 (permalink)
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Sam do not worry about rodinal going off as it has a long shelf life in fact even when opened and resealed the life of the stuff is astounding the developer will become dark yet in my learning and subsequent use of rodinal for all my film development at 50:1 the stuff lasts years,one of the reasons for its popularity. I understand that it is being made again so the developer will be available no worries(check APUG FORUMS for information regarding this)
As other developers discolour it,s a sure sign of dev going off but not so with this stuff.
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Re: A question about film developer...
Old 06-16-2006, 07:50 PM   #6 (permalink)
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Hey Barry, thanks for that info! I didn't know it was such hardy stuff. I've already opened the new bottle and used it just a little while ago, but the one-year-old-and-opened bottle I have I'll hafta experiment with to see what happens. I had no idea that particular formula was being made again -- that's really great news!

Thanks for the help Barry,

Sam
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Re: A question about film developer...
Old 06-17-2006, 09:48 AM   #7 (permalink)
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Hi Sam.
I found the following information by accident, but it might be good news for you.
It relates to UK stockists I'm afraid, but you may want to do some more research on this A&O company.
"Agfa Chemistry Back!
As they promised, the German company a&o, who aquired Agfa's chemical range after the dissolution of AgfaPhoto, have lost no time in relaunching the range onto the market . All products are available apart from one or two of the more esoteric ones, including Viradon toner which will be on the next shipment. All the favourites are there, including Rodinal neg. developer and the Neutol print developers, Distribution in the UK is starting small, however, at the present the stockists are ourselves, Process Supplies from Clerkenwell, London EC1, and RK Photographic, now relocated to Potters Bar."
I found the information here: http://www.silverprint.co.uk/index.html
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Re: A question about film developer...
Old 06-17-2006, 01:05 PM   #8 (permalink)
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Hi Kevin, thanks for that! I'm feeling better now that I'm hearing that Agfa chemistry will still be around. I'm gonna dig more into it and see where it's available. Knowing me I'd order it from the UK if I had to.

Thanks again,

Sam
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Re: A question about film developer...
Old 06-17-2006, 07:24 PM   #9 (permalink)
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Sam,
FWIW, you can store any unopened powder formulation in the fridge (or freezer) and lengthen its shelf-life. (Liquid formulations may (or may not, varies) be sensitive to freezing.) Even opened, if kept dry, the shelf-life will be extended at lower temperatures. Don't contaminate your food and be careful to let the can and its contents warm to room temperature before opening. Otherwise moisture will condense on the powder and affect the measurement in the future.
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Re: A question about film developer...
Old 06-18-2006, 03:33 PM   #10 (permalink)
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Hey John,

Yeah, I like powders since they last so long, but the laziness in me often leads me to liquids... the irony being that I almost always end up throwing some of it out since I hardly ever use up a full bottle of anything, and by the time I get back to it it's gone bad. What's a guy to do? I guess just use powders, huh?

Thanks John,

Sam
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