The Vocas MB-256 is specially designed for use with Zeiss CP.2 lenses. The matte box is suited for lenses with a front diamter of 114 mm. You can apply two filters, 1 set filter and 1 rotatable filter drawer. The patented internal Vocas eyebrows are integrated into the hood of the box for optimal control of flair and for reflection reduction. It offers a quick lock mounting system that attaches directly to the front of the lens mount. You can also use it as clip on and for 15 mm LWS rail support by using an optional rod adapter or swing away adapter. It is compatible with most wide angle lenses in the aspect ratios 4:3 and 16:9.