Feature 1Applicable Model: C Mount Lens, 180X zoom, adjustable magnification, suitable for VGA USB industrial video microscope camera. 2Adjustable Magnification: The objective magnification is 0.74.5X (about 10180X on the monitor), zoom ratio is 6.5:1, working distance is 90150mm / 3.54 5.91in. 3Field of View: Maximum multiple field of view is 2.8mm x 1.5mm, and the minimum multiple field of view is 25mm x 14mm, 0.5X eyepiece Lens. 4Easy to Install: The microscope camera c mount lens is easy to install on the microscope and observe the internal structure of the object. 5Durable Material: C Mount Lens is made of high strength aluminum alloy, which is rust proof and has good durability and stability.Item Type:MicroscopeCameraCMountLensMaterial: Aluminum AlloyWorking Distance: Approx. 90-150mm / 3.54 -5.91inZoom Ratio: 1:6.5Magnification: 0.7 - 4.5X (About 10 - 180X Display)Maximum Multiple Field of View: 2.8mm x 1.5mmMinimum Multiple Field of View: 25mm x 14mmEyepiece Lens: 0.5XSize: Approx. 168mm x 50mm / 6.61 x 1.97in (L x DIA) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x MicroscopeCameraCMountLens