The Mamiya 45 mm lens is a wide-angle AF lens at 28 mm, equivalent to a 35-mm focal length lens. With a 74 degree viewing angle, this Mamiya lens offers photographers natural perspectives and increased depth of field for sharper, clearer photos. Quality construction reduces barrel distortion at the edges of the frame, making the Mamiya 45 mm lens especially well-suited to architectural and landscape photography. This Mamiya lens is designed for Mamiya's line of 645 cameras, but will work with many different medium format SLRs. The AF lens is built with low dispersion glass elements to minimise chromatic aberration and discolouration in images, leading to clearer, more natural colours. An aperture range of F/2.8 - F/22 offers photographers a wide range of options to suit many different shooting environments, making the Mamiya 45 mm lens a solid general photography lens. This lens accepts filters with a 67-mm thread size. The Mamiya 45 mm lens is 2.9 inches (73.5 mm) long, 3 inches (77 mm) wide, and weighs 16.7 oz (475 g).