New Sigma HSM lenses for Nikon

Sigma launches new HSM lenses for Nikon SLRs - Digital cameras, digital camera reviews, photography views and news newsJune 29, 2007 - 09.20 GMT
Sigma announces two new compact HSM lenses for Nikon SLR cameras. A HSM (Hyper-Sonic Motor) lens uses a motor driven by ultrasonic waves to provide a quiet, high-speed Auto Focus.  The Sigma 18-50mm F3.5-5.6 DC HSM is a compact standard zoom lens that measures 69.6mm (2.7") x 60mm (2.4") and weighs 250g (8.8 oz). The new Sigma 55-200mm F4-5.6 DC HSM is a compact and lightweight telephoto zoom lens measuring 71mm (2.8") x 84.6mm (3.3") and weighs 310g (10.9 oz)...More