Vocas 0320-0008
Vocas 105 mm to 95 mm Step down ring for MB-3XX for Canon wide angle lenses When using a matte box as clip-on, step down rings can be necessary, with or without thread. This ring is required when using a MB-3XX matte box as a clip-on on a lens with a front lens diameter of 95 mm (for Canon wide angle lenses).