Drew, what you're saying above is the accepted wisdom on iron-based processes, no question. It was in examining how Herschel originally did his prints (coating the sensitive iron alone, then developing with the colorant) that the current workers came to the rex processes; beyond that, I'm only repeating the claims they've made. I haven't done it yet -- perhaps in the next day or two, having completed my camera repair and conversion work today.Originally Posted by Dracotype
HTML, waxing paper negatives (from the back) was standard practice for decades, back when kallitypes in camera were competing with Daguerreotypes. It *might* be possible to coat c. rex on inkjet transparency material -- certainly worth trying, I'll have to see if I have a box of that stuff around the house. Those who created c. rex report being able to contact print from c. rex negatives back to a positive in the same medium, but (again) haven't published whether they waxed the original or otherwise rendered it translucent.