G251 is a universal MQ normal contrat developer for neutral black tones on contact and enlarging papers.

Also suitable for films and plates developed in a tray.

IngredientQuantity
Do not dilute.
Metol
1.5
grams
Sodium sulfite anhydrous
25grams
Hydroquinone
6
grams
Sodium carbonate anhydrous40grams
Potassium bromide1
gram
Water to make
1
liter

Use at full strength. Diluted 1:1 will give softer results provided that the exposure time is increased and the development time remains unaltered.

Development times at 20°C: “Ridax”, “Artona” — 1 minute; “Gevatone”, “Vittex” — 1–1.5 minutes; “Gevarto”, “Gevabrom” — 1.5–2 minutes; “Replica 23” plate — 3 minutes; “Diapositive” plate — 3–4 minutes.