There are three different frames available depending on filter size: 67mm, 82mm and 100mm. They designed for the special bayonet filter mount. These frames also have bayonet nothces to accept another bayonet filters mounted over. The size of gelatin filter itself standardized at 3×3 inch.

82mm and 100mm gelatin filter frames

82mm and 100mm gelatin filter frames

Filter size Lens
67mm 90mm f/2.8 (LS), 90mm f/2.8, 105mm f/2.4, 135mm f/4 Macro, 165mm f/2.8, Takumar 200mm f/4
82mm 45mm f/4, 75mm f/4.5, 75mm f/4.5 Shift, 300mm f/4
100mm 55mm f/3.5

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