Marshall, a maker of innovative high quality specialty video products, has a variety of custom installation cameras and lenses. The V-4316-2.5 is a 16 mm f/2.5, 3 element all glass lens for just such appilcations. The body of the lens has the 12 mm mount and it can be used for either 1/2- or 1/3-inch CCD cameras. A selection of semi-custom lens holders are available as accessories. The f/2.5 fixed aperture provides greater depth of field than the similar 16 mm f/2.0 lens.