Click to toggle zoom Sigma Japan has announced the availability of its 70-300mm F4-5.6 DG OS image-stabilized telephoto zoom lens in Sony and Pentax mounts. The lens is suitable for use on both APS-C and full frame DSLRs. Priced at 59,000 yen, the Sony version will start shipping from November 27, 2009 followed by the Pentax version from the first week of December 2009. More...

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At PMA 2009, Sigma announced an updated version of its consumer telephoto zoom, the Sigma 50-200mm f/4-5.6 DC OS HSM. In addition to getting a little bit wider (50mm instead of the pre-existing 55-200mm version), the big addition was optical image stabilization. We've finished putting the lens through its paces in our test lab: click here to read our full review of this lens. (read more)

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