180X Zoom C Mount Len 0.7X-4.5X for USB Industry Microscope Camera Description: ZOOM C Mount Lens is mainly used in the following fields: Machine vision microscopic inspection Industrial testing, especially electronic component testing scientific research Education industry. 1X-180X Zoom C-mount Lens: Working distance: 100-150mm Zoom ratios: 1: 6.5 Magnification Power by 0.7-4.5X(about 1 - 180X on the display) view field of Max multiple: 2.8mmx1.5mm view field of Min multiple: 25mmx14mm Eyepiece lense: 0.5X Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Material: Metal colour: Black Package Contents: 1 x 180X long lens Only the above package content, other products are not included. Note: Light reflection 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.