This PL-mount, 2.7x zoom lens maintains a constant T2.9 maximum aperture and low distortion, with a minimum focus distance of 2 feet for extreme close-ups. It features a Cooke /i data connector, user-switchable focus marks in feet/meters, and can operate in temperatures ranging from -4 to 113°F. The Ultra Compact 37-102mm lens minimizes breathing during focus adjustments and offers a wide barrel rotation of 310° for precise focus control.