This Macro Zoom Lens is designed to accommodate up to a 2/3" format sensor. This compact, high-resolution lens is ideal for a variety of inspection and testing applications. Sharp, high-contrast images are produced over the entire zoom range by minimizing distortion. Macro Zoom Lenses, with the 3.3 to 1 zoom ratio, can achieve fields of view from 6.4mm to 21.3mm at a 90mm working distance. Locking screws for the manual zoom, iris, and focus enable these lenses to be used in high vibration environments. Featuring a lens filter thread, the 3.3X Macro Zoom Lens can used in conjunction with a variety of filters and polarizers to meet specific application needs. Common applications include the use of color filters to enhance contrast, polarizers for the elimination of glare and neutral density filters to decrease transmission.