B4 Mount
Designed in the 1970’s and becoming standard in 1992 the B4 Mount was designed to work with 2/3-inch sensors. B4 lenses can have a huge zoom range which coupled with a large depth of field make them invaluable for sports and ENG applications.
In case you're putting together a new lens kit or looking to update a few accessories, take a look at our selection of lens accessories, mount adapters, follow focus, matte boxes, zoom & focus controllers and optical filters.