Mamiya Sekor AF 75-150 f4.5 D Lens has a perfect zoom range which allows to capture nature’s gorgeous scenic horizons. Its resourcefulness makes it crucial in portrait studios as it helps to “crop” without changing the camera position. It is a medium telephoto zoom lens with an angle of view of 50 to 26 degrees to provide the focusing distance of 3.3 feet. It is compatible with 645AFDII (film and Digital back), 645AF (requires upgrade to 645AFD)/645AFD (film back only).Its Aperture Range is f/4.5 ~ 32 with a magnification range between 0.09 ~ 0.16x. It weighs 2.5lbs. (1.14kg), has an attractive bayonet type hood.