12MP highdefinition lens, 200X optical zoom, observe objects more clearly. 2The aperture can be fixed and locked, more convenient. Low distortion, high compatibility, can adapt to most industrial cameras. 3The zoom lens can be used as multiple fixed lenses, thereby saving time for changing lenses. 4The shooting range can be changed by changing the focal length, which is very useful for composition. 5Premium quality aluminum alloy material, rugged, anti-corrosion and durable, ensures long lifespan. Item Type: Camera Lens Material: Aluminum Alloy + ABS Optical Multiple:0.13X-2XZoom Ratio: 15:1Image Format: 1/2inResolution: 2MP Mount: C/CSOptical Distortion: 79%Lens Construction: Aluminum Alloy +4 Set 5pcsOperation: Zoom, Fixed, Focus, Manual, Iris, FixedOperating Temperature: -20-+80 How to Use: Connect the lens to industrial camera or electron microscope lens to use, you can adjust the magnification to watch 1 x Camera Lens