[alt-photo] Re: Alt-photo-process-list Digest, Vol 453, Issue 1

[Richard Knoppow]

----- Original Message ----- 
From: "Christina Anderson" <zphoto at montana.net>
To: "The alternative photographic processes mailing list" 
<alt-photo-process-list at lists.altphotolist.org>
Sent: Friday, July 22, 2011 8:40 AM
Subject: [alt-photo] Re: Alt-photo-process-list Digest, Vol 
453, Issue 1


> Well, it is was so hot here in MN that my wood floors 
> which are atop a cold basement in this almost 100-year old 
> house were wet. No air conditioning here.
> But the heat finally broke, sort of.
> I remember when I moved to South Carolina for grad school, 
> I was shocked to find out the water came out of the 
> faucets bathtub temp. I had never even thought that 
> occurred, always having lived in northern climes where the 
> well water or city water pipes were buried deep in the 
> ground and hence water was always 55 degrees or so.
> To keep it on topic, when I first started using Maco 
> Infrared film, that emulsion was so soft that it would 
> ding and slough in the 70's. Had to always be careful to 
> keep the developing temp low with that film.
> Chris
>
> Christina Z. Anderson
> christinaZanderson.com

      Allowable processing temperatures have gone up 
considerably over the years. Up to about 1940 the "standard" 
temperature was 65F, then it was increased to 68F. Not a big 
difference but it showed the progress in emulsion hardness 
of the time. Emulsion frilling, reticulation, and grain 
migration due to emulsion swelling were common problems. I 
think we have stepped backwards with some of the current 
films made by small companies who don't have or can't apply 
the technology developed by the big guys.

--
Richard Knoppow
Los Angeles, CA, USA
dickburk at ix.netcom.com