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

The major reason behind this is a large circular aperture that produces a shallow depth of field and high quality low dispersion aspherical lens elements that ensure you have outstanding image quality throughout the full zoom range.

This lens also has one more vital and equally as impressive feature - image stabilization. This means that the camera can accommodate for camera shake under many circumstances, allowing you to shoot in low light more often and with higher confidence that your images will still be of the finest quality.

Furthermore, the EF S 17 55 f 2.8 IS USM features an easy to use, ring-type ultra-sonic motor and an extremely fast and intuitive auto focus system, which is a true to use.

Product specifications and important data:

Focal length: 17-55 mm

Maximum 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 feet)

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: 77 millimeters

Dimensions: 3.3 inches 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 wonderful lens. As far as 1.6x crop lenses go there's no other lens on the market nowadays that offers you the ideal combination of a workable zoom range, aesthetically pleasing depth of field, image stabilization and to top it off a very fast and very precise auto focus.

As if that wasn't enough, the image quality rivals that of lenses costing many thousands of dollars and shouldn't be overlooked as your next lens choice or simply an upgrade to the popular but basic EF-S 18-55 millimeters kit lens.

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