Marshall-Electronics-VZPL12-4mm-to-20mm-12Inch-f25-Zoom-Pinhole-Lens-Black

These industrial grade manual vari-focal pinhole lenses are ideal for those situations where the camera must be hidden. Although designed for 1/3-Inch electronic iris cameras, these lenses are also useful on 1/2-Inch cameras where they can provide up to a 120 degree horizontal field of view at 4mm. The lens has a 4mm to 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. As with all Marshall lenses, carries a full one-year warranty.