Mark C, I wonder if that is the LaGrange Park that is just a bit east of me. What's the name of the place? Regards, Bob S.
On Thu, Nov 17, 2011 at 6:48 AM, Mark C <[email protected]> wrote: > That sounds like fun. I played around with developing with coffee last > summer - it is pretty simple to do and the results were not bad. Only > developer that I've used that managed to get rid of the pink cast in Neopan > SS. Aside from the novelty, there is not much point to it though. > > FWIW - I found a store in Lagrange Park, Illinois, that still has good > stocks of many Kodak powder developers. Mostly in the old foil pouches, > which can be good for storage. I picked up some Microdol-X and DK-50. They > had lots of D76 but I already have gobs of that on hand.... > > MCC > > On 11/16/2011 8:21 AM, Collin Brendemuehl wrote: >> >> Here's something quite novel from APUG/Alan Johnson.Developer from >> Broccoli >> >> Many plant chemicals contain phenolic groups (as do >> hydroquinone,pyrogallol,pyrocatechol).I tried to extract the phenols from >> Broccoli by heating 200g Broccoli in 1% sodium carbonate (anh) solution at >> 100C for 15min with stirring.After filtering this Broccoli extract I added >> some Phenidone dissolved in isopropyl alcohol. >> >> PP-1 developer: >> Extract of 200g Broccoli >> Phenidone .................0.1g >> Sodium Carbonate 1% to 600ml. >> >> I checked that phenidone alone was not doing the developing by >> developing old APX 400 30m 20C ag 10s/min in PP-1 without the Broccoli >> extract.The negatives were very thin and flat. >> For the test, APX 400 at EI=200 was developed in PP-1 30m 20C >> ag10s/min. >> The negatives were slightly underdeveloped but otherwise good.The >> attachments show the full negative and a 0.2in square section. >> >> To see if there was any tanning I bleached the negs in 100g/L >> ferricyanide/bromide and fixed them.No relief image or tanning could be >> seen. >> This surprised me as I expected plant phenols to be like >> hydroquinone,pyrogallol, pyrocatechol and tan the negatives.The only >> explanation I can find is that the oxidation products of Broccoli phenols >> are not very stable and do not spread through the gelatin (Photographic >> Processing Chemistry, LFA Mason 1975 p172).Of course all this does rely on >> the assumption that it is the phenols from Broccoli that are involved in the >> developing. >> >> >> >> >> >> Sincerely, >> >> Collin Brendemuehl >> "He is no fool who gives what he cannot keep to gain what he cannot lose" >> -- Jim Elliott >> >> >> >> >> >> > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
