G527

Intensifier for very weak negatives, free of fog or veil. IngredientQuantity Pour 1 part Solution B into 3 parts Solution A, whilst stirring A rapidly. Solution A Uranium nitrate10 grams Water to make 1 liter Solution B Potassium ferricyanide10grams Water to...

G526

Intensifier for use with under-exposed negatives, or in cases of under-development even of over-exposed negatives. IngredientQuantity Mix chemicals in order. Mercuric chloride20 grams Hydrochloric acid3mililiters Potassium bromide20grams Water to make1liter Dissolve...

IN4

Chromium intensifier for approximately proportional intensification of thin negatives whether arising from slight under-exposure or under-development. IngredientQuantity Mix chemicals in order. Potassium bichromate90 grams Hydrochloric acid64mililiters Water to...

IN1

Mercury intensifier for film and plates giving increased maximum density with little intensification of intermediate tones. Also known as Monckhoven’s intensifier. The mercury intensifier is recommended where extreme intensification is desired but where...