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Pre-IFA 2009: Sony has released a full-frame 28-75mm F2.8 SAM lens to accompany its new Alpha DSLR-A850 digital SLR. 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.
The company has also announced a little more detail about its SAL30M28 30mm F2.8 Macro DT (APS-C format) lens. It will be launched at the same time and has a minimum focusing distance of 0.129m, giving 1:1 reproduction.
Sony 28-75mm F2.8 SAM lens
| Price | US: $800 |
|---|---|
| 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 |
| 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 |
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