Hi Robert, The sepia toner I use is a 'hand me down '....from the early days of photography. It yields a true sepia tone and is very, very fast....with fresh stock at 20C ( 69F ) less than 30sec for each bath. You can cool the tone down by using less potassium bromide in the toner ( more if you want a warmer tone color etc ). The stocks are reuseable ie...don't dilute them as a 1 shot + don't forget to wash the bleach out before you tone ( I do know photographers who don't!!!! )(posted 8739 days ago)A...Bleach potassium ferricyanide 50gm, potassium bromide 10gm, water to 1 liter. B...Toner thiourea 5gm, potassium bromide 40gm, sodium hydroxide 15gm, water to 1 liter.
Cheers, Peter Dinnan.