Sistan

[Markok765]

I have a small bottle of sistan and would like to use it on my FB prints.

My questions:
1: what dilution eg 1+???
How long to have the print in?
How long can i use it?
any change in image tone?

 

[RalphLambrecht]

What dilution eg 1+???
1+20 for Sistan New. I don't remember if the old Sistan had a different dilution.

How long to have the print in?
1 minute, followed by wiping but not washing it off.

How long can i use it?
2m^2 for FB prints, according to Agfa. Double that for film or RC.

Any change in image tone?
None!