The Marshall V-ZPL06 is a manual vari-focal industrial pinhole lens designed for 1/3" CCD cameras. This lens has a 4-20mm range of focal length with a wide range of view angles. Its aperture wide open is f/2.5, reasonably effective in lower lighting conditions. It can also be used with 1/2" CCD cameras which will give an amazing 120° angle of view at full 4mm wide.
High Quality for Tough Situations
When the camera lens must be hidden from view, a pinhole lens such as this
V-ZPL06 provides clean images when they count the most. The Marshall lenses have glass elements for consistent low distortion video. The front element of this lens is about 3 mm in diameter, easily hidden from view. The lens is 4" in length.
Variable Angle of View
The lens at full 4 mm wide provides a wide angle of about 60°. At full extension - 20 mm - the lens shows a horizontal angle of view of about 14°