Along with the introduction of the A850 DSLR, Sony has introduced the 28-75mm SAM lens. At around $800, the new 28-75mm becomes a more cost effective option over the Sony Zeiss 24-70mm f/2.8 lens. The SAM moniker in the new lens stands for Smooth Autofocus Motor. The 28-75mm lens consists of 14 elements in 16 groups, which includes 4 aspherical elements. Filter thread size is 67mm.
On Sony’s crop-sensor cameras, which includes everything but the A850 and A900, the 28-75mm focal length produces an angle of view equivalent to roughly 42-113mm on a full frame camera.
The Sony 28-75mm f/2.8 SAM lens should be available in November 2009 for about $800. Check availability on Amazon.com.
I’ve got it
http://www.flickr.com/photos/dt0306/sets/72157622731921814/
this new SAM autofocus motor, will it still be compatible with the older screw drives on the A350?