MULTIGRADE filters for exposure of gradiation paper between 0 and 5, numbered in half gradations; The filter 00 corresponds to the lowest contrast (= thinnest gradation) and the filter 5 the highest contrast (= steepest gradation) with in the range described. Multigrade filters are available as film filter on polyester as complete filter sets. In principle they can be used above or below the enlarger lens. The visually best position is in a filter drawer above the negative. If required, these filters can be sized carefully to the filter drawer size. Use gloves to avoid damage or spots on filter. |