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

Nelson Mark ender100 at aol.com
Fri Jul 22 17:49:07 GMT 2011

It's been beastly hot here near Chicago.... We had a storm front come in last night and it is cooled down some.  I'm always surprised when I travel to other parts of the country where people don't need air conditioning or don't need much in the way of heating.  Here near Chicago with extremes in cold/hot & humidity, it seems we either have the air conditioning or heating running all year round.

Best Wishes,
Mark Nelson

PDNPrint Forum @ Yahoo Groups


On Jul 22, 2011, at 12:28 PM, Richard Knoppow wrote:

> ----- 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 
> _______________________________________________
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