Re: Glossy Kallitypes

[Sandy King <sanking@clemson.edu>]

Doug

Solarization is normally caused by over-exposure in the shadows. Do 
you have any means of measuring the density of your negatives? If so, 
what is Dmin (shadow density) and Dmax (maximum shadow density)?

Sandy





At 4:38 PM -0400 5/28/07, dhowk wrote:
> I've experimented with Kallitypes on glossy or semi-glossy paper, 
> but have solarization problem. With COT-320 & other watercolor 
> papers, gold-toning before fixing seems to control solarization, but 
> not on glossy paper. I've been using Sodium Acetate or Sodium 
> Citrate as developers with tartaric acid & Potassium Dichromate as 
> additives.
> For the paper, I've tried fixed photo papers including Bromoprint & 
> Oriental Seagull graded. Following Dick Stevens' advice in his book, 
> I've tried varying the silver to iron ratio in sensitizer with as 
> high as 3:1 for Silver Nitrate to Ferric Oxalate. This does seem to 
> give some control, but does not totally eliminate the solarization. 
> Am I missing something or is it not possible to do good Kallitypes 
> on glossy paper?
> Thanks,
> Doug Howk