5/02/2011

Sigma 120-300mm f/2.8 EX DG IF HSM APO Telephoto Zoom Lens for Canon SLR Cameras Review

Sigma 120-300mm f/2.8 EX DG IF HSM APO Telephoto Zoom Lens for Canon SLR Cameras
Average Reviews:

(More customer reviews)
I've had this lens for about 1 year now and am very happy with it. I have no complaints with the quality of the unit or its photos. Some other reviewers have had a complaint with the mount screw holes, stating that they were of poor quality and stripped easily requiring the purchase of a new upgrade mount from Sigma. After using this lens extensively, I can authoritatively say that the mount is very good quality and should provide years of service free use. If you treat it respectfully, you won't have any problems.If you are interested in this lens, I would advise that you get it ASAP, because its price is rapidly rising every year. It has increased a full $400 in less than 8 months!

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Product Description:
The Sigma APO 120-300mm f2.8 EX DG HSM Lens for Canon Digital SLR Cameras features a large aperture of f2.8 at the 300 millimeter focal length and is optimized for used with digital SLR cameras. This lens transforms a large-aperture f2.8 300 millimeter lens into a zoom lens that allows you to determine the picture composition you want without having to change your vantage point. It has two SLD (Special Low Dispersion) glass elements in front group and another SLD element in the rear group for excellent correction of chromatic aberration.
The latest in multi-layer lens coating technology and lens design reduce flare and ghosting, which is a common problem with digital cameras, and it also creates an optimum color balance through the entire zoom range. The lens' AF drive is equipped with a silent, responsive and high speed Hyper Sonic Motor (HSM), which also provides full-time manual focus function. Since focusing and zooming do not change its overall length, this lens is easy to hold and use. In addition, since the front of the lens does not rotate, a circular polarizing filter can be easily attached and used. High-speed focusing is possible when this lens is used with dedicated APO EX 1.4 x or 2x tele-converters (sold separately).

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