Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Versatile and Durable: Built to meet the demands of modern industries, this monocular lens can be used in a of settings. The C-mount glass lens adapter ensures durability and long-lasting use, providing excellent value for money. 1X-150X C-MOUNT Lens: Working distance: 50mm-1000mm zoom ratios: 1 : 15 Magnification Power by 0.13- 2X (about 1 - 150X on the display) view field of Max multiple: 4.2mmx2.4mm view field of Min multiple: 130mmx70mm Material: Metal colour: Black Package Contents: 1 x 150X Lens 1 x ring adapt 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.