Foma Fomadon Excel (W27) is a two-component powder black and white negative film developer based on ascorbic acid. It is designed for the manual processing of all types of perforated, roll and sheet negative films. Excel is highly stable and tolerant of fluctuations in temperature. It yields negatives with accurate film speed, fine grain and excellent sharpness, as well as higher resolving power and strong drawing of lights and shadows.

The powder is to be dissolved in 700 ml of water (20-30 °C). Once the contents are dissolved, add water until you reach a total volume of 1 liter.

One package of Fomadon Excel is enough to develop 12 35mm films (36 exposures) or roll films (120), or a corresponding amount of sheet films (up to 30 sheets size 13 x 18 cm). In order to achieve maximum yield, your Fomadon Excel can be reused up to 3 times.