The Aven Tools 26700-180 Macro Zoom 7000 Lens is a close-focusing macro video lens with a working distance of 5 inches to infinity. This versatile lens is compatible with cameras 2/3 inch or smaller and is specifically designed for use in applications where objects over 1 inch in diameter must be imaged. The lens offers unsurpassed clarity and parfocal zoom capabilities over the entire zoom range. The Zoom 7000 is ideal for quality assurance, biomedical imaging, or assembly applications where an easy-to-view, sharp and true-to-life magnified image of your product can mean the difference between a shippable, top-quality end product and a costly manufacturing failure. The Zoom 7000 offers a 6:1 zoom ratio or a 6x magnification power over a focal range of 0.71 to 4.25 in. It includes a close-up lens for imaging at distances from 5 to 12 inches. When the close-up lens is removed, the working distance extends from 24 inches to infinity.