Response to NEGATIVE REDUCTION

Ricardo, the sepia toning kit will help reduce the negative density and tone the negative if you want. So lets go by steps, first the bleaching part of the sepia toning is what is known as part A of the Farmers reducer. This is only pure potassium ferricyanide. If you wish to bleach a negative and then redevelop this is what you use, if you wish to bleach it and make the reduction permanent then you place it on fixer after you have reduced. As to the toning effect, yes it will change the color of the negative if you use the sulfide part, lets examine the process, on paper you have paper support, gelatin and silver salts on a negative you have plastic support, gelatin and silver salts, so asyou can see the toning effect will occur on both negative and paper. Now if you wish to have a color on your negatives it is easier to use a tanning developer, like catechol or pyro rather than sepia toning your negatives. BTW there is no such thing as refrective density and iron porocesses like cyanotype and Kallitipe are some of the most stable and durable processes. If you wish to tone your negative blue go ahead, it will last longer than you or I will.

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