Buying online Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Pentax Digital DSLR Camera Two FLD glass elements, which have the performance equal to fluorite glass have also been added along with three SLD glass elements, all which provide excellent correction of color aberration Sigma's New APO 70-200mm F2.8 EX DG OS HSM is the second generation of this large aperture telephoto zoom lens now incorporating Sigma's Optical Stablization function, OS, Sigma's own
Sigma 70-200mm f/2.8 Pentax anti-shake system Its exceptional versatility as an all-around lens is perfect for journalists and wedding photographers Dimensions: 86.4mm x 197.6mm (3.4in x 7.8in) Optional accessories: Sigma DG Circular Polarizer 77mm ...
More details » Sigma 70-200mm f/2.8 Pentax Review: I have had the opportunity to use the Sigma 70-200MM F2.8 APO EX DG HSM OS lens for awhile and feel good enough about it to do a review.The main reason I bought the new OS version was the stabilizer, in which I'm happy to say works great. I took a group of photos at 1/15 of a second shutter speed and was very pleased with the number of keepers. All I hear is a click of the stabilizer and thats it. On my Nikon 70-200mm VR1 I would hear ... Read more »
70-200mm f/2.8 Pentax Sigma Price: Check price 
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