Process Profiles with chemistry steps
Per-process chemistry recipes: developer, clearing, fixer, wash times.
Where to find it
Tools tab Alternative Process Chemistry section
Summary
Each alt-process picks up its full chemistry workflow inside the modal: ferric ammonium citrate ratios for cyanotype, the platinum/palladium developer recipe, the salt print sequence, the Van Dyke chemistry. Lets the calculator double as a quick reference while you are at the sink.
Detail
How it works
What it does
When you pick a process in the calculator, the dialog now also shows the chemistry sequence for that process: what to mix, in what ratios, in what order, and how long each step takes. So the same modal that tells you the exposure time also tells you the post-exposure development workflow.
What's covered
Cyanotype (ferric ammonium citrate + potassium ferricyanide, classic and Mike Ware variant), Van Dyke brown (ferric ammonium citrate + tartaric acid + silver nitrate), salt print, platinum/palladium, and gum bichromate. Each carries its standard recipe; uncommon alternates are not bundled to keep the modal focused.
How it pairs with UV exposure
Hit the Apply button on the exposure tab and the chemistry tab updates with the recommended development time for that exposure. So if you under-expose by a stop, the development step compensates accordingly. Test-strip first; alt-process variability is real.