Ilford Multigrade filter set 8.9x8.9cm

The twelve MULTIGRADE filters are numbered 00-5 in 1/2 steps, with the lowest filter number corresponding to the softest contrast. They can be used above or below the lens and can be cut to fit the enlarger filter drawer. MULTIGRADE filters are very easy to use: no complicated calculations are needed when changing from one filter to another. The exposure time for filters 00-31/2 is the same; that for filters 4-5 is double.