Oryctone is our black and white developer made in-house. This recipe is designed to be used with our signature film, Formula 1, but can be used to process any other major black and white film stocks.

This powder developer makes a 1 liter concentrate, which is to be diluted 1:3 when processing Formula 1 - essentially 4 liters of working solution.

The packet comes with two parts, (A + B) mixing instructions, Formula 1 development info, and an empty data table for you to run your own experiments with other film stocks.