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film
flowers
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lilies
developer
sekor
mamiyaZM
PC-Glycol


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Photo replaced on 17 Jul 2016
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Oriental Lilies

Oriental Lilies
The flowers of Stargazer Lilies don't last long, but while they do they are always spectacular!

I finally got round to mixing up some PC-Glycol, a two part developer made by dissolving phenidone and ascorbic acid in ethylene glycol for the first part, and a 0.5% solution of sodium carbonate for the second.

The glycol needs to be warmed a little to completely dissolve the other chemicals, and smells a bit, but it's easy to do on an old hotplate in the workshop, not too sure about doing it in the kitchen!

The idea behind this developer is that the developing agents are only activated when mixed with the alkaline second bath - in glycol they are inert, and have an almost indefinite shelf life, and most commonly used alkalis - sodium carbonate, Kodalk, and borax, last for ages also, so good for casual use.

The nice thing is that it seems to give quite fine grain plus the usual ascorbic acid sharpness, very like Caffenol, but without the need to mix it up every time. I think I will explore this more!

1983 Mamiya ZM Quartz, f1.7/50mm Sekor lens, x2 yellow filter. Polypan F at EI 50, 3ml PC-Glycol, 0.5% sodium carbonate solution to 300ml. 10 mins @ 21C. Scanned at 2400dpi on Epson V500.

Berny, tiltdesign2011, , giovanegian have particularly liked this photo


6 comments - The latest ones
 giovanegian
giovanegian
Well composed, as always!
I am very happy to read again about your development work.
7 years ago.
Mikeinlagardette has replied to giovanegian
Gianni, molte grazie!

I wish I was the originator of this developer, but I am only putting into practice the great ideas of the late Patrick Gainer, who sadly died at almost the same time as out mutual friend, Robbe Keppens.

Patrick was very much an "original thinker", and although he could be rather combative at times, he was full of novel ideas and theories, and it's a pleasure to be able to put some of them into practice!

I miei migliori auguri,
Mike
7 years ago.
 imagesfrugales
imagesfrugales
Beautiful picture and fine processing. Very sad to hear about Patricks death, I didn't know that. Who of us hobby chemists didn't read some of his articles i.e. at unblinkingeye?
7 years ago.
Mikeinlagardette has replied to imagesfrugales
Hello Reinhold,
thanks for your kind words! Yes, very sad about Patrick, I knew that he had been unwell for some time, and Murray Kelly told me about his death in a personal email.

Patrick died in Baltimore, Maryland on November 28, 2015 at the age of 88, there seems no mention of it in the usual forums, but here is a link to a brief obituary on the NASA site:

crgis.ndc.nasa.gov/historic/Patrick_Anthony_Gainer

Sincere good wishes,
Mike
7 years ago.
 tiltdesign2011
tiltdesign2011
Sehr schöne Aufnahme!!
7 years ago.
Mikeinlagardette has replied to tiltdesign2011
Ralf, vielen Dank für Ihre Aufmunterung!
7 years ago.

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