Mamiya 50mm f/4 Wide Angle Manual Focus Shift Lens for 645

The 50mm f/4 Shift is a special application lens for perspective control. It features a unique wide field coverage and perspective control shift mechanism in a rotating mount, allowing the photographer to maintain proper linear perspective, identical to PC shift lenses for 35mm cameras.

Applications include precise perspective control for architectural or industrial rendering or table top photography.
Specifications
Construction 8 Groups/ 10 Elements
Angle of view 70°
F stop range f/4-32
Closest Focusing Distance 1' 5.7" / 45cm
Maximum Magnification 1:5.6
Filter Size 77mm
Dimensions (Length x Diameter) 4.2 x 3.2" / 105.5 x 80mm
Weight 1 lb. 10 oz. / 735 g.
Notes Maximum Shift 16mm vertically, 13mm horizontally
Shift Direction Can be shifted in any direction by rotating the lens 360 degrees around the optical axis. Click-stops are provided at 30-degree intervals.
Maximum Shift Indication The maximum shift for each 30 degree interval is indicated by color-coded numerals and Shift Scale.
Image Circle Diameter 97mm