The Canon EF S 17 55mm f2 8 IS USM Lens is an excellent, high quality lens that is basically produced for the EF-S zoom lens range, though the image quality is very good that some have likened it to being on par with that of the famous and highly regarded Canon L series range.

The chief reason behind this is a large circular aperture that creates a shallow depth of field and extremely high quality low dispersion aspherical lens elements that make certain that you get outstanding image quality throughout the entire zoom range.

This lens also has one more significant and equally as amazing option - image stabilization. This implies that the camera can accommodate for camera shake under some situation, allowing you to shoot in low light more often and with more self confidence that your images will still be of the best quality.

In addition, the EF S 17 55 f 2.8 IS USM showcases a simple to use, ring-type ultra-sonic motor and an extremely quick and intuitive auto focus system, which is a real joy to use.

Product specifications and vital data:

Focal length: 17-55 millimeters

Highest aperture: f/2.8

Lens construction: 19 elements in 12 groups

Diagonal angle of view: 78 degrees (at 30 ft) to 27 degrees (at 50 ft)

Focus adjustment: AF with full-time manual

Closest focusing distance: 1.15 feet

Zoom system: 5-group helical zoom (front group moves 27mm)

Filter size: 77mm

Dimensions: 3.3 in. in diameter, 4.4 inches long

Weight: 22.8 ounces

There is no doubt that the Canon EF S 17 55mm f2 8 IS USM is one magnificent lens. So far as 1.6x crop lenses go there's simply no other lens on the market today that gives you the perfect combination of a workable zoom range, aesthetically pleasing depth of field, image stabilization and to top it off an extremely quick and very exact auto focus.

As if that was not enough, the image quality rivals that of lenses costing many thousands of dollars and should not be ignored as your next lens choice or simply an upgrade to the admired but fundamental EF-S 18-55 millimeters kit lens.

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