This Dandy Gadget: Equipped a 7-blade circular aperture, Sigma announced a 17-70mm F2.8-4 DC Macro OS HSM lens for Sony and Pentax cameras which has 22m minimum focusing distance, maximum magnification 1:2.7. With a single lens uses three aspheric, it will serve you to get your high quality of image.
In addition, Sigma 17-70mm F2.8-4 Macro OS HSM lens contains a Super Multi Layer Coating feature, Optical Stabilizer with four effective correction steps, and HSM (Hyper Sonic Motor)and AF making faster and quiet in shot and clear image result.
Sigma 17-70mm F2.8-4 Macro OS HSM is tailored in 539g and will be shipped in February 22 2010 for Sony, in March 19 2010 for Pentax at Japan market. The price tag is MSRP 56,200 yen, sold bundled with its accessories, [Dandy Gadget Source]