Versatile and Durable: This monocular lens is built to meet the demands of modern industry and can be used in a variety of environments. 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 Power with 0.13- 2X (approximately 1 - 150X on screen) Field of View at Max Multiple: 4.2mm x 2.4mm Field of View at Min Multiple: 130mm x 70mm Material: Metal Color: Black Package Contents: 1 x 150X Lens, 1 x Adapting Ring. Only the above package contents are included; other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real item. The allowed measurement error is +/- 1-3 cm.