Developed to succeed the EF75-300mm f/4-5.6 II, this compact, lightweight high- magnification telephoto zoom lens covers medium telephoto 75 mm to super telephoto 300mm. Like the EF75-300mm f/4-5.6 III USM, it has a metal ring at the front of the zoom ring to give it an upscale image. It uses a DC motor as AF drive actuator. The optical system and controls are the same as those of the EF75-300mm f/4-5.6 III USM. For environmental protection, only lead-free glass lens elements are used. Specifications DC Autofocus Motor (Non-USM) Focus Drive: Micromotor Groups: 9/13 View of Angle: 32 degrees - 8 degrees  Min. Focus: 4.9 ft. (1.5m) Min. Aperture: f/32-45 Filter Diameter: 58mm Length: 413/16" (122mm) Weight: 17 oz. (480g)