Re: Some Kallitype observations

[Venkatram Iyer <eyeear@telus.net>]

Don,

FWIW, I proceeded to do developer-toner combos of sxs run prints and 
found the following:

a) 5% KOX - Au toned >>> cool brown shadows, tan-mauvish highlights.
b) 20% Na citrate - Au toned >>> cooler shadows and whiter highlights 
rel. to a).
c) 5% KOX - Pd toned >>> warm browns throughout tonal range
d) 20% Na cit - Pd toned >>> cooler browns than in c); slightly warmer 
than b) across 	the tonal 	range.
e) 5% KOX - Pt toned >>> as in c) but browns are slightly darker.
f) 20 % Na cit - Pt toned >>> very similar to d).

What I was interested in doing was establishing combos (under my 
working conditions) that would generate subtle color changes in the 
otherwise B/W Kallis. Double-toning also holds promise and all this 
becomes more apparent when the prints are viewed together.

Sandy King has shown this in his Unblinkingeye article. Other factors 
(water quality, humidity, sensitizer components, paper, etc) also 
contribute to the tones obtained.

Rajul


On 5-Sep-06, at 11:44 AM, Don Bryant wrote:

> Rajul,
>
> >
> Don Bryant, you do kallis, correct?
> >
> I have used potassium oxalate to develop kallitypes - once. I started 
> out
> with a virgin mix of PO at 20%. I developed my first print and was 
> greeted
> with a dark purple looking print. Immediately I realized 2 things:
>
> 1) The PO increased the speed of the kallitype when compared to the 
> same
> exposure developed in sodium citrate.
> 2) I liked the tone/color of the print.
>
> I then adjusted my exposure time and tried the PO developer again. 
> Much to
> my surprise the print had the same tonal color as the sodium citrate
> developed prints. At that point I saw no advantage to using PO for
> kallitypes and dumped the mix.
>
> My 2 cents,
>
> Don Bryant