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Get information and user reviews for this lens from Amazon: Canon EF 28-135mm f/3.5-5.6 IS USM Standard Zoom Lens for Canon SLR Cameras
Similar to the Canon EF 28-105mm f/3.5-4.5 USM the EF 28-135mm f/3.5-5.6 proved to be a solid performer without any spectacular strengths nor weaknesses except a positive peak at its 28mm setting. The level of distortions is pretty low for such a lens and vignetting isn’t overly pronounced. Due to the 1.6x cropping factor on APS-C DSLRs the range is quite unexciting here but if you’re looking for a compact short tele-zoom with IS to compliment an ultra-wide zoom … why not? READ FULL REVIEW