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Get information and user reviews for this lens from Amazon: Canon EF 24-85mm f/3.5-4.5 USM Standard Zoom Lens for Canon SLR Cameras
The Canon EF 24-85mm f/3.5-4.5 USM exhibited a quite mixed performance. On the upside the lens is very sharp with very little vignetting throughout the range. Unfortunately distortions at 24mm are pretty hefty as are chromatic aberrations. The build quality is pretty decent and the AF performace is a joy. All-in-all the lens is capable to beat the cheapo EF-S 18-55mm as well as the EF-S 17-85mm IS and regarding sharpness it can even rival the the EF 24-70mm f/2.8 USM L (on APS-C). If the focal length range was more attractive here the lens would have been a killer but as such it is just a good compromise. READ FULL REVIEW
Other Canon 24-85mm f/3.5-4.5 USM EF Reviews
The Canon EF 24-85mm f/3.5-4.5 USM Lens is light in weight and light on your wallet. If you want a Canon zoom lens and can’t spend a lot of money, the 24-85 is one of your best choices. The Canon EF 24-85mm f/3.5-4.5 USM Lens’ build quality is mid-level for Canon’s zoom lenses – decent, but not great. The 24-85 extends a moderate amount during zooming – the extension has some wobble. With a rear-focusing USM implementation, the Canon EF 24-85mm f/3.5-4.5 USM Lens focuses fast and quietly. Wide open results from the 24-85 are somewhat soft – especially the wide end full-frame corners. Stopping down to f/5.6 or f/8 will give you better results, but even stopped down, I wouldn’t call the results exciting. The 24-85 is a nice travel lens combining a nice general purpose focal length range in an easy-to-take-with-you package. There are better lenses available but the Canon EF 24-85mm f/3.5-4.5 USM Lens is a good value. READ FULL REVIEW
Though its image circle will cover a 35mm negative, this is the lens Canon introduced with its EOS IX APS SLR. When used with the smaller APS format, it yields angles of view equivalent to that of 30-106mm lens on a 35mm camera. Aperture ranges from a reasonable f/3.5 at 24mm to a still-reasonable f/4.5 at 85mm. Admirably small and compact for a 35mm format zoom, the lens is huge and heavy compared to the (slower) 22-80 Minolta introduced with the Vectis S-1. Like the Minolta lens, the Canon zoom takes a bayonet plastic lens hood; unlike Minolta, Canon does not include the hood with the lens. That’s a shame because a lot of amateurs won’t know how to order the accessory part EW-73 and will never know how much contrast they are losing by not hooding this 12 group, 15 element lens. READ FULL REVIEW