Reviews and Problems with Canon EF-S 55-250mm f/4-5.6 IS
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6 February 2010
Excerpt: Features and handling The unusual 55-250mm focal length range of this telephoto lens butts up neatly with Canon’s 18-55mm standard kit lens. Between them, the two optics offer EOS users an uninterrupted range of 18-250mm – that’s 29-400mm once you factor in the EOS system 1.6x crop factor. (This is an EF-S lens, so it shouldn’t be used on D-SLRs with full frame or APS-H sized sensors.