RE: "Dick Stevens' book."

[Sandy King <sanking@clemson.edu>]

Neal,

1. At times when I am working with both kallitype and palladium I 
keep separate developers for the two processes. In part this is 
because I am calibrated best with sodium citrate for kallitye and 
potassium oxalate for palladium. Also, used developer solutions 
contain silver or palladium metal and will give you some quirky 
results. So I don't recommend this at all.

2. I have never made gum over kallitypes, or gum over anything for 
that matter, but I see no reason why this would not work, especially 
if tone the kallitype with palladium as I suggest.

3. It is possible to include other metal additives (gold, palladium, 
platinum, mercury) in the kallitype sensitizer of SN + FO and they 
will affect the final look. How they will interact is another matter. 
I personally never tried it since I use dichromate control for both 
kallitype and palladium printing.

Kallitype and Pt./Pd. are brother/sister or first cousin processes so 
almost anything you learn with one process will be directly 
applicable to the other. That includes method of coating, choice of 
paper, and developer. Clearing has to be more gentle with kallitype 
than with palladium since there is a risk of bleaching the silver 
image. One the kallitype image is toned that risk disappears. The 
main thing with both processes is to use a fresh FO solution, an 
acidic developer, and don't put the print in water that is alkaline 
until it is cleared of the hydroxide.

Sandy




At 4:05 PM +0000 3/21/07, Neal Wilson wrote:
> I read Mr. Stevens' book and have to agree, Sandy. I decided after 
> reading the book that I'd pursue Pd Pt before kallitype.  After 
> recently reading your primer online I've decided to experiment with 
> Kallitype as it seems like something I can tackle with the Pd skills 
> I've developed, and it seems like an inexpensive way to experiment 
> with the multiple exposure (8x10) panoramas I'm currently working 
> on. Like, use the Kallitype as a "proof" to make sure you want to 
> invest resources in a particular image or triptych.
>
> A few general questions about kallitype:
>
> 1.  Can one use the same PotOx developer used for PdPt with 
> Kallitype or will this somehow contaminate that developer and make 
> it less effective for PdPt. Like, if I've got a good working PotOx 
> and want to go back and forth between Kallitype and PdPt, is that 
> okay, or should I have separate solutions?
>
> 2.  I've read conflicting views on whether Kallitypes can be a good 
> base for Gum Over treatment.
>
> 3.  Has anyone experimented with the Na2 method of contrast control 
> that is used in PdPt printing with Kallitype?  Or is the sodium 
> incompatible?
>
> Thank you,
>
> Neal Wilson
>
>
>
> > From: Sandy King <sanking@clemson.edu>
> One would find a very hard time taking
> > this book and actually learning to make kallitype prints. You might 
> > be able to do it but the trail would take you through some pretty 
> > rough and wooded terrain that might juste as well be avoided.
> >
> > Sandy King