Vocas 0630-0001 (0630_0001, 0630/0001, 06300001, 0630-0001) MB-600 Donut Adapter Ring
Ring with exchangeable soft rubber donut rings. Required if the matte box is used on a rail support to fill the gap between the rear other matte box and the front of the lens. Includes 4 sizes soft rubber donut rings, 124/105/85/75 mm.
In The Box: