Sony has released a full-frame 28-75mm F2.8 SAM lens.
The constant F2.8 lens offers a less expensive alternative to the Sony Zeiss 24-70mm F2.8 ZA for A850 and A900 owners looks for a fast standard zoom. Construction is made up of 14 elements in 16 groups, including four aspherical elements. It features the SAM (Smooth Autofocus Motor) in-lens autofocus technology, rather than the SSM system used in the ZA lens. Priced approximately at around $800 USD, it will start shipping from November 2009.
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Specifications:
- Maximum format size: FX
- Focal length: 28-75mm
- 35mm equivalent focal length (on APS-C cameras): 42-112.5mm
- Diagonal angle of view: 75°- 32 °
- Maximum aperture: F2.8
- Minimum aperture: F32
- Lens Construction: • 16 elements/ 14 groups • 4 aspherical
- Number of diaphragm blades : 7
- Minimum focus: 0.38m / 1.3ft
- Maximum magnification: 0.22
- Image stabilization: No
- Filter thread: 67mm
- Weight : 565 g (20 oz)
- Dimensions: 77.5mm diameter x 94mm length
(3.2 x 3.8 in)
- Lens Mount: Sony Alpha/Minolta MA