An evening well spent in the photo basement lab: Preparing new ferric oxalate and silver nitrate sensitizer part solutions from scratch, pH testing and logging state of various other fresh processing chems, filtering solutions, doing a bunch of test strips... and a lot of waiting in between (emulsion takes around 1h to dry, then up to 20 mins exposure), good time chunks for researching...

Still on the quest to achieve cooler & deeper tones, but also quite happy about the new deep & smooth black/brown I discovered along the way. Learning about dichromates and impact on graininess... In the larger picture, the aim is to narrow down the number of variables to tweak the overall fiddly Kallitype process to be as predictable as it allows or is feasible, from controlling &n documenting the age of solutions, temperature ranges, air humidity (for paper), duration of processing steps, concentrations, pH values, filtration/contaminants, and, and, and...

#AltProces #Kallitype #Darkroom #DarkroomPrint #AnalogPhotography #PrintMaking #FineArt