[rollei_list] Re: Rollei Retro Film

At 01:38 AM 2/25/2008, Richard Knoppow wrote:

 >    Are you using a hardining fixing bath? If not try one
 >and see if if it helps with the curling. Curling is mostly
 >caused by the differential shrinking of the emulsion vs: the
 >support. Most film, both roll and sheet, has a coating of
 >gelatin on the back to counteract the curling. Usually this
 >back coating also contains the anti-halation dye. The dye is
 >changed to a colorless form by the sulfite in the developer
 >and fixing baths. Not all films have anti-curling coatings.
 >My suggestion about the hardener is that it will tend to
 >reduce the amount of shrinking.

I have been warned for four decades to avoid a=20
hardening fixer.  I never knew WHY hardening=20
fixers existed.  Me?  (a Dative of Reference, for=20
you Indo-European Scholars in our midst)  I will=20
stick to a non-hardening fixer and to Hewes=20
reels.  I also let the film hand for a day or so=20
before printing it unless I have a rush=20
commercial job (which I've not had in the past six or seven years).

Marc


msmall@xxxxxxxxxxxx
Cha robh b=E0s fir gun ghr=E0s fir!

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