Re: [pinhole-discussion] Powder vs. Liquid
From a health safety perspective I would choose liquid concentrates. Kodak's HC110 is my personal favourite. The developer is supplied as a syrupy concentrate which you are supposed to dilute 1:3 with water to make a stock solution and ultimately 1:31 to make dilution B. I do not make stock solution; instead, I work directly with the syrup, which will keep at least 1 year if you exclude air from the opened bottle. More information at: http://www.covingtoninnovations.com/hc110/ Always use disposable gloves to avoid hydroquinone sensitisation/allergy. Ray
RE: [pinhole-discussion] Powder vs. Liquid
More important should be the characteristics that you are seeking in your developer. The results you get from Rodinal, for instance, will be very different from what you get with D76. Rodinal, as a liquid, is more convenient to mix, but I would never use it with a film like Tri-X (not to say that someone else might like that combination). Then again, if you mix a liter of D76 stock, then you can dilute it for use very quickly, so you are really only talking about the time savings of a few minutes per month. Cheers - george - http://www.GLSmyth.com http://DRiPInvesting.org --- On Tue 11/25, gregg b. mc neill gbmcne...@hotmail.com wrote: From: gregg b. mc neill [mailto: gbmcne...@hotmail.com] To: Pinhole-Discussion@p at ??? List-Post: pinhole-discussion@pinhole.com Date: Tue, 25 Nov 2003 14:53:08 -0500 Subject: [pinhole-discussion] Powder vs. Liquid Does anyone have any preference between powder developer vs. liquid brdeveloper?brbrAs far as convience, It would seem that liquid would be faster.brbrare there any downsides to liquid?brbrthanks in advance for your thoughts...brbrgregg b. mc neillbrbr_brNeed a shot of Hank Williams or Patsy Cline? The classic country stars are bralways singing on MSN Radio Plus. Try one month free! brhttp://join.msn.com/?page=offers/premiumradiobrbrbr___brPost to the list as PLAIN TEXT only - no HTML brPinhole-Discussion mailing listbrPinhole-Discussion@p at ???brunsubscribe or change your account atbrhttp://www.???/discussion/br ___ No banners. No pop-ups. No kidding. Introducing My Way - http://www.myway.com
Re: [pinhole-discussion] Powder vs. Liquid
I prefer liquids because you can mix single shots. Right now I use Rodinal a lot for Delta 100, HP5, and FP4 (all 4x5, 8x10, 7x10 so I don't mind the grain). I had been using HC-110 for some time previously. To me, the shortcoming of dry chems is that you have to mix entire batches. I don't have a formal darkroom, and I don't have any of those flotation devices either so - it's foolhardy for me to mix an entire batch of, say, D76 that I use so infrequently that's it's going to go bad before I can finish it. BUT - apart from Rodinal, I've recently moved pretty much to dry. For lith film, I predominantly use a concoction suggested by Gord, and there's no way to make this except from scratch. I also now make my D76 from scratch when I need it for such films as Maco or HIE. Mixing D76 from scratch is kind of a pain compared to the flask-popping you can achieve w/ Rodinal. But it isn't THAT inconvenient, and the ingredients are a joke anyhow. This frees me to do one-shot mixing. The two drawbacks to dry: you need a triple beam or one of those digital scales, and when you call Photo Formulary for ingredients, there's a good chance you will have to have your name added to John Ashcroft's Terrorists-against-American-Freedom file. Mike - Original Message - From: gregg b. mc neill gbmcne...@hotmail.com To: Pinhole-Discussion@p at ??? Sent: Tuesday, November 25, 2003 12:53 PM Subject: [pinhole-discussion] Powder vs. Liquid Does anyone have any preference between powder developer vs. liquid developer? As far as convience, It would seem that liquid would be faster. are there any downsides to liquid? thanks in advance for your thoughts... gregg b. mc neill
