Fujifilm RA-4 Control Strips for CP-40FA II/43FA II/47L II/48S II, Pack of 30

The Fujifilm RA-4 Control Strips for CP-40FA II, 43FA II, 47L II and 48S II are a box of 30 control strips designed to help evaluate and maintain consistent results from your RA-4 chemistry and processor. Each control strip is pre-exposed with a specific pattern; after development of these strips they are compared to the provided pre-developed and similarly exposed reference strip. Through densitometric evaluation, you are able to determine how much your processing performance deviates from standard performance.