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Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras
An affordable long-zoom lens with two effective image stabilisation modes. Released concurrently with the EOS 5D, Canon’s EF 70-300mm f/4-5.6 IS USM telephoto zoom lens replaces the 10-year-old EF 75-300mm f/4-5.6 IS USM lens. We tested it on Canon’s new EOS 30D, where it covered a focal length range equivalent to 112-480mm in 35mm film format. The new lens combines ultra-low dispersion (UD) and aspherical lens elements and includes an improved optical image stabiliser (IS) that allows users to shoot at approximately three shutter speed increments slower than a non-stabilised lens. This is a one-stop improvement over its predecessor. READ FULL REVIEW
Other Canon 70-300mm f/4.5-5.6 EF IS USM Reviews
The performance of the Canon EF 70-300mm f/4-5.6 USM IS came as a total surprise. Unlike its predecessor the lens is capable to produce a very high performance throughout the zoom range without the significant drop in quality at 300mm typical for most consumer grade lenses in this range. It seems as if the new UD element helps to lift the optical quality significantly. Distortions, CAs as well as vignetting are also very respectable. So in terms of optical quality the EF 70-300mm IS can be almost described as a hidden Canon L lens. As much as it may promise here its build quality remains in line to what you can expect from a consumer grade lens and the small max. aperture is limiting its scope. … However, if you’re looking for a very good, light-weight tele zoom e.g. for travel photography this lens should be high on your shopping list. READ FULL REVIEW
When we ran this lens through its paces in our lab, we were flat-out astonished by the optical quality it delivered. Were it not for the largely plastic body construction, we’d say that Canon has mislabeled this lens: It really delivers L-glass performance. That plus a very effective image stabilization system make this an amazing bargain at its typical street prices. Bottom line, while it has a few minor limitations, and has rather small maximum apertures, the Canon EF 70-300mm f/4-5.6 IS USM is one of the outstanding bargains of Canon’s entire lens lineup. READ FULL REVIEW