Selectează o Pagină

Energetic positive developer giving vigorous results. Producing pure black to blue-black tones on chloride paper, and pure black tones on bromide enlarging paper.

Focal paper developer for blue-black tones, working solution
Ingredient Quantity
Mix chemicals in order.
Metol 2 grams
Sodium sulphite anhydrous 25 grams
Hydroquinone 6 grams
Sodium carbonate anhydrous 37.5 grams
Potassium bromide 0.5 gram
Water to make 1 liter

Do not dilute as solution is ready for use.

Times of development:

  • For contact printing papers (gas-light): 45–60 seconds.
  • For enlarging papers (chloro-bromide and bromide): 1.5–2 minutes.

Keeping qualities and use: The solution keeps well and is very economical in use.

Note: To increase the capacity of the developer for blue-black tones on contact printing papers (gas-light), and pure black tones on enlarging papers (bromide), add a developer improver.