In a previous article, http://www.searing.photography/testing-lpd-vs-pf106/ I explored the differences of two paper developers on 3 different papers and found there was little difference in the tonality based on developer.  There were differences in exposure time required to achieve max black  and some differences in shadow detail but I can not attribute all of that to […]

Today I engaged in further experimentation with Thiourea toning. I changed the mix that I used in my earlier article  from 20/20/400 to 10ml Thiourea, 40ml Sodium Hydroxide, and 500ml water.  The tone was not the yellowish brown of sepia but a much richer chocolate brown. The dark shadow areas were the color of coffee […]

I have been interested in the sepia toned images I have often seen online. My attempts at toning with selenium yielded a nice chocolate brown on Ilford MGFB WarmTone paper but was not so pleasant on MGFB Classic. I ordered the Thiourea Toning kit from Photographers Formulary. It ships with chemistry to make 1Liter of […]