A set of correction filters designed to control the gradation of multi-gradation black and white photographic papers.
They allow you to regulate the resulting gradation in 7 stages from extra soft to ultra hard.
Dimensions: 15,2 x 15,2 cm
Yellow (Y) = 2 pcs
Light purple (M1) = 2 pcs
Deep purple (M2) = 2 pcs
Data sheet
Specific References
Reference: 90420316
Reference: A33
Brand: Kaiser
Reference: 90420515
Brand: Tesla
Reference: 90619146
Reference: 90420318
Reference: 78757310
Brand: Ilford
Reference: ptr00041
Brand: Paterson