The Photographers Formulary Film Developer DK-50 is a moderately fast developer for commercial and sheet sizes of Plus-X, Pan professional films.

The developer produces negatives with normal contrast, average to slightly higher than average graininess. May use with or without dilution.

Undiluted developer can process 5- 8 X 10" per 1 liter of Formulary 50 without replenishment.
Diluted developer 1:1 can process 10- 8 X 10" per liter.

To Make 1 liter of stock