U of S | Mailing List Archive | alt-photo-process-l | RE: Some Kallitype observations

RE: Some Kallitype observations

Thanks for clarification. What if I add dichromate beforehand? Will it
cause the developer go bad in the long term? I guess you do it for being
able to print with negatives of different DRs; because it lets you mix
developers with different dichromate levels, as needed. Since I will be
using calibrated digital negatives, I guess preparing a dichromate-added
developer stock solution beforehand would not harm... Is it so?


-----Original Message-----
From: Sandy King [mailto:sanking@clemson.edu] 
Sent: 07 Eylül 2006 Perşembe 14:52
To: alt-photo-process-l@usask.ca
Subject: RE: Some Kallitype observations


Sorry, my head was somewhere else. What I meant to write was that I 
replenish the developer at the rate of about 50-100 ml of fresh 
sensitizer for about every 100 square inches of print surface that 
goes through it.

I keep a bottle of fresh developer on hand (without dichromate), and 
a small bottle of 5% dichromate. Since I use the dichromate at 2ml of 
the 5% solution per liter of developer, when I add 100 ml of fresh 
solution I also add 4 drops of the dichromate, assuming that 1ml is 
20 drops. Hope this is clear.


>"...for every 100ml of sensitized paper processed..." I don't 
>understand this. You mean 100ml of coating solution? This makes around 
>50-60 prints with my usual image size (8" x 12"). I was planning to 
>replace 200ml of used developer with 200ml fresh / dichromate added 
>developer on every 6 print. What do you think about this replenishment 
>scheme? Do you find it too conservative and/or wasteful?