The Sigma APO 70-200mm f/2.8 EX DG OS HSM full-frame telezoom lens is now available in Japan. Constructed of 22 elements in 17 groups, the lens has a filter thread size of 77mm and has an iris diaphragm with 9 rounded blades for a smooth bokeh. Two FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and three SLD (Special Low Dispersion) glass elements provide excellent correction of colour aberration, the company says. Supplied with a tripod collar and a petal type lens hood, the Sigma APO 70-200mm f/2.8 EX DG OS HSM weighs in at 1,430 grams and is available in Canon, Nikon, Sigma, Sony and Pentax fit. Film camera users should be aware that the Optical Stabiliser (OS) does not work when the lens is mounted to film SLRs except for the and Canon EOS-1V.
