To make use of multigrade or VC paper you need to use filters to obtain those grade.
Our own sets includes twelve filters which are numbered 00-5 in 1/2 steps, with the lowest filter number corresponding to the softest contrast.
Filters are available in sets of filters 8.9x8.9cm (3.5 x 3.5 inches) and 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.