The Tamron SP AF17-50mm F/2.8 XR Di II VC LD Aspherical [IF] is made exclusively for Nikon-mount DSLRs with an internal focusing motor. This lens is equivalent to an 26-78mm angle of view on a full frame camera.
The Tamron 17-50mm f/2.8 lens will be available in September 2009 at an initial price of approximately $650. Check availability on Amazon.com.
You can also check availability of the coming Canon version of this lens via this link.
More details in the press release below. [Read more...]