Quote Originally Posted by marciofs View Post
My question is about selenium toning and sepia toning. I know they are different chimicals.

question 1: Toning after wards or when the print is wet?

question 2: How to control the sepia tones, or it intensity (when using sepia toning of course).
If the print has dryed you must soak it in water before toning or the print may become mottled.

Selenium is a metaloid in the same family as sulfur. Sepia is a color. I think you are refering to sulfide toning which can produce a sepia tone.

You control the amount of toning and/or color by either dilution or by the time in the toner. Each toner formulation is different with commercial toners follow the manufacturers instructions.