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Wintertime butterflies

 
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leonardturner



Joined: 14 Mar 2013
Posts: 421
Location: Atlanta, GA, USA

PostPosted: Sat Feb 10, 2018 4:57 am    Post subject: Wintertime butterflies Reply with quote



Plan achro 4X on Labophot, crossed polarizers. The crystals are drying Kodak (Ilford doesn't work!) rapid fixer.

Leonard
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Pitufo



Joined: 21 Jun 2015
Posts: 203
Location: United Kingdom

PostPosted: Sat Feb 10, 2018 5:35 am    Post subject: Reply with quote

Beautiful
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leonardturner



Joined: 14 Mar 2013
Posts: 421
Location: Atlanta, GA, USA

PostPosted: Sat Feb 10, 2018 12:42 pm    Post subject: Reply with quote

Thanks, Pitufo. When I first began playing with crystals, I had the naive hope that different chemical would provide different looking crystals, perhaps to the extent of being able to identify as least some substances by their crystals. Such certainly appears not to be the case (at least not without knowing the context of where the crystal was found, as in uric acid crystals in joint fluid). Part of the fun of crystal formation is the process, watching as they evolve, but this doesn't lend itself well to presentation here. Perhaps the best demonstration without resorting to video is a montage, and this is what I have tried with the image below--all of which are forms of the hypo crystals as they come out of solution. After prolonged drying, they take a much less dramatic form.

I would be interested in anyone's comments on this; there is clearly a great deal I don't know.

Leonard


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Sumguy01



Joined: 28 Jan 2013
Posts: 1119
Location: Ketchikan Alaska USA

PostPosted: Sat Feb 10, 2018 2:20 pm    Post subject: Reply with quote

Very Happy Nice.
Thanks for sharing.
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ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 7787
Location: Near London, UK

PostPosted: Sat Feb 10, 2018 4:20 pm    Post subject: Re: Wintertime butterflies Reply with quote

leonardturner wrote:
Kodak (Ilford doesn't work!) rapid fixer.

Leonard

Part A or B Laughing
http://ehsrms.uaa.alaska.edu/CMS/Laboratory/MSDS/MSDS%20by%20Vendor/Kodak/Kodak%20Rapid%20Fixer%20Parts%20A%20&%20B.pdf

or a list of them all here
https://parallaxphotographic.coop/resources/material-safety-data-sheets-msds/
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Chris R
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leonardturner



Joined: 14 Mar 2013
Posts: 421
Location: Atlanta, GA, USA

PostPosted: Sun Feb 11, 2018 5:28 am    Post subject: Reply with quote

Well, Chris, it was Part A and Part B mixed, used, and aged (there's been no wet work in the darkroom for some time now). The Ilfofix was also a veteran of distant wars, so both fixers contained silver salts as well as their original components.
Maybe if we subtracted the chemical components the two have in common from the Kodak we could speculate what made the latter work, but I don't think I'm up to it!
Leonard
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Jacek



Joined: 02 Oct 2011
Posts: 5030
Location: Poland

PostPosted: Mon Feb 12, 2018 12:22 am    Post subject: Reply with quote

Nice
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https://photos.app.goo.gl/MV9IynUtBdaKkVj53
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leonardturner



Joined: 14 Mar 2013
Posts: 421
Location: Atlanta, GA, USA

PostPosted: Tue Feb 13, 2018 5:48 am    Post subject: Reply with quote

Thanks, Jacek.
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