Mamiya Sekor 45mm 2.8 AF Digital LensWith an angle of view of 74 degrees, this lens is equivalent to a 29mm lens in 35mm format. Its wide angle of view and deep field makes the lens appropriate for any situation, from snapshots to scenics. Low-dispersion glass minimizes chromatic abberation. A floating mechanism lends uniformity to image resolution, from centre to periphery. This lens is also suitable to architectural photography and other subjects dominated by straight lines, and it offers sharp and crisp rendering.Includes 3 years, value-added warrantySpecificationsOptical Construction - 9 elements / 7 groupsAngle of View - 74ºAperture Range - f2.8 � f/22 Diaphragm - Automatic Focusing System - Auto Focus / Manual Minimum Focusing System - 1.4 ft. / 45 cm Maximum Magnification Ratio - 0.13 x Area Covered - 12.2 x 16.5 " / 310 x 418 mm Equivalent 35mm Focal Length - 29mmFilter Size - 67mm Bayonet - BayonetDimensions (L x W) - 1.9 x 3 " / 49.5 x 77mmWeight - 1.1 lbs. / 492g / 17.35 oz.