The Mamiya Sekor AF 150mm f/2.8 IF D Lens is a medium telephoto designed for Mamiya 645-AFD III 6 x 4.5 format cameras. This lens has 8 elements in 7 groups and is built with ultra-low dispersion glass correcting chromatic aberration to produce extremely sharp images with rich contrast from infinity to as close as 3.28' (1 m). A selector ring enables switching from automatic to manual modes and it has a focal length of 93mm in the 35mm format. It is well suited for subjects requiring a shallow depth of field, such as portraits.
Specifications
| Focal Length | 150 mm |
| Aperture | Maximum: f/2.8 Minimum: f/22 |
| Camera Mount | Mamiya 645 AF |
| Angle of View @ Infinity | 26° |
| Minimum Focus Distance | 3.3' (1.01 m) |
| Area of coverage | 218 x 295 mm |
| Elements/Groups | 8/7 |
| Magnification | 0.19x |
| Maximum Reproduction Ratio | 1:5.26 |
| Shutter Type | Sekor Leaf Shutter |
| DOF Scale | Yes |
| Distance Scale | Yes |
| PC Outlet | No |
| Autofocus | Yes |
| Tripod Collar | No |
| Filter Thread | 72 mm |
| Weight | 1.7 lb (771 g) |
| Dimensions | Approx. 3.3 x 4.7" (8.38 x 11.94 cm) |
