Item Type: Camera Lens Material: Aluminum Alloy Focal Length: 10-50mm Image Format: 1/1.8in Resolution: 6 MegaPixel F NO: F2.8 Mount: C Mount Optical Distortion: -1.3% To -0.09% CRA: 6 - 4 BFL: 17.526mm Dimension: 37x65.0mm / 1.5x2.6in M.O.D.: 0.25m Inf. IR Correction: Yes Operation: Iris, Focus, Zoom, All Manual Operations Operating Temperature: -20-+80 Package List 1 x Camera Lens 2 x Adjustable Knob 3 x Screw The optical coating is very important for the imaging of the lens, and it needs to be handled with care to avoid scratching the coating 16MP Lens: Camera lens has a 6 MegaPixel, which provides high definition images, good color reproduction, observe objects more clearly. 2Manual Aperture and Zoom: Industrial camera lens with manual focus and adjustable aperture, no lens shadow, no vignetting, high image quality. 3Characteristic: C Mount Lens, the image format is 1/1.8in, the focal length is 1050mm adjustable, high compatibility, can adapt to most industrial cameras. 4Premium Material: Industrial camera lens is made of premium aluminium alloy material, anti rust, wearproof, sturdy, can deal with harsh environment. 5Simple Operation: Manual iris lens is easy to install and disassemble without affecting the installation and use of other accessories, nice replacement.