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The Canon EF 28-135mm f/3.5-5.6 IS USM Standard Zoom Lens for Canon SLR Cameras is a “standard” zoom lens that was introduced in February, 1998. The lens has a 4.82x zoom range and is based on the EF Lens Mount and works with all film and digital EOS cameras that support this mount.

The lens features 2nd-generation image stabilization (IS) technology, ring-type USM with full-time manual focusing and a non-rotating front element. The lens uses a six-blade aperture. Closest focusing distance is 20 in. (50cm). From WikiPedia.Org

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