Sigma Apo has rolled out the 70-200mm F2.8 EX DG OS HSM lens for Nikon DSLR. Constructed of 22 elements in 17 groups, the tele zoom lens has a filter thread size of 77mm and has an iris diaphragm with 9 rounded blades for smooth bokeh. There are also a couple of FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, and a trio of SLD (Special Low Dispersion) glass elements provide excellent correction of color aberration. The new Sigma APO 70-200mm F2.8 EX DG OS HSM retails for $2,470. [Product Page]
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