Sony 28-75mm F2.8 SAM

The 28-75mm F2.8 SAM lens offers a less expensive alternative to the Sony Zeiss 24-70mm F2.8 ZA for Alpha owners looking for a fast standard zoom. It's designed for full frame cameras, but can equally be used on APS-C. Construction is made up of 14 elements in 16 groups, including four aspherical elements. The lens features SAM (Smooth Autofocus Motor) in-lens autofocus technology, rather than the SSM system used in the 24-70mm.