Sony has also announced a new full-frame lens to coincide with the release of the new Alpha 850 full-frame sensor DSLR. Expected to begin shipping in November 2009, the 28-75mm f2.8 SAM lens provides a constant f2.8 at an affordable price. Expected to retail for around $800; far less than the available Sony Zeiss 24-70mm F2.8 ZA. The lens features 14 elements in 16 groups including four(4) aspherical elements and SAM (Smooth Autofocus Motor) within the lens. The SAL30M28, a 30mm f2.8 Macro DT lens for the APS-C format is also due to be released around the same time
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