The Pentax C60811 is a CS-mount 1/2-inch CCD CCTV zoom lens with an auto-iris function. The lens incorporates 8mm to 48mm focal range that provides a very useful range of view angles. The lens can be used continually even when lighting conditions and/or scene dimensions change. The aperture range from f/1.0 to f/720 can put this lens in high-speed machine vision applications or scenarios where lighting is very bright. Contrary to the automatic exposure features the lens has manual zoom and focus. The user can dial-in and sustain the exact area of concentration with the manual functions.