1. High-quality industrial optical glass, multi-layer coating technology, high precision, large aperture, large amount of light entering, clear and vivid image, high light transmittance, clear picture quality 2. 3MP high-definition lens, low distortion, provides high-definition images and good color reproduction. 3. Equipped with F1.6 aperture, which can effectively improve the shutter speed in dark environment, and the image is still bright in dark environment. 4. High-precision , easy-to-hold focus ring provides very accurate focus for high-precision 5. The lens adopts aluminum alloy body and high-quality lens, which is durable and has a long service life, thus saving the time of changing the lens when traveling Specification: Product name: camera lens Model: CW-VMO850-3MP length: 8-50mm Image size: 1/2.3inch Interface: C-mount Field of view: W41.8x30.8/T6.42x4.8 Flange back : 17.53mm Zoom: Manual/Lock Aperture: Manual/Lock Dimensions: 40x68.3mm Close-up distance: 0.5m Working temperature: -20~+80 colour: black Material: metal Package Contents: 1 x Camera lens Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.