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Ultra-Wide-Angle 28mm f/4.5 Sek D Aspherical Auto Focus Lens
Product Description
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 color rendition by steering the light directly to the sensor in a straight line so that there is no color shift - a problem with many lenses used with digital backs. In this way, sharpness and contrast are maximized.
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.
| 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 |
| Optical Design | 14 Elements in 10 Groups |
| 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 |
| Dimensions | Approx. 3.54 x 5.35" (8.99 x 13.59 cm) |
| Weight | 1.95 lb / 886 g |
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