The Mamiya Full-Frame, Ultra-Wide-Angle, 28mm f/4.5 Sekor D lens is another in the long line of high-quality Mamiya lenses for their 645AF system. This innovative lens is the first medium format 28mm lens for both film and digital use. The use of high-quality aspheric lens elements produces outstanding optical performance.In the fine tradition of Mamiya quality lenses, the 28mm f/4.5 lens provides superior optical quality for a wide variety of photographic uses. Photographers from many disciplines will put this lens to good use - commercial, architectural or nature. The aspheric elements deliver true colour rendition by steering the light directly to the sensor in a straight line so that there is no colour shift - a problem with many lenses used with digital backs. In this way, sharpness and contrast are maximised.
A true benefit of this lens is that it has been designed to work on Mamiya's full line of medium format auto focus cameras - both film and digital. At present, there is no other lens of similar design that meets that specification.
Features
- First 28mm medium format wide-angle lens designed for film and digital
- Excellent colour and contrast
- Aspheric elements
Compatible cameras
- 645AF (requires upgrade to 645AFD)
- 645AFD/645AFDII
- ZD camera (requires firmware upgrade)
Specifications
| Focal Length | 28 mm |
| Aperture | Maximum: f/4.5 Minimum: f/32 |
| Camera Mount | Mamiya 645 AF |
| Angle of View @ Infinity | 102° |
| Minimum Focus Distance | 1.15' (35 cm) |
| Area of coverage | 276 x 372 mm |
| Elements/Groups | 14/10 |
| Magnification | 0.15x |
| Maximum Reproduction Ratio | 1:6.6 |
| DOF Scale | Yes |
| Distance Scale | Yes |
| PC Outlet | No |
| Autofocus | Yes |
| Tripod Collar | Yes |
| Filter Thread | None |
| Weight | 1.95 lb (886 g) |
| Dimensions | Approx. 3.54 x 5.35" (8.99 x 13.59 cm) |
