Perhaps I am fortunate that I haven't had a dust problem yet. I took the lens, as my only lens, to an outing in Utah and Arizona. Beautiful focus and color for the sandstone formations and the wide angle shot well for the landscapes.

Comparatively light

Doesn't come with a hood

The large circular aperture produces a shallow depth-of-field, creating background blur that draws attention to the photographic subject. The lens construction includes UD and aspherical elements, which deliver impressive image quality throughout the entire zoom range.

* Constant f/2.8 aperture * Fast AF with internal focussing * 3.3x zoom range * Image stabilisation system

Peak resolution

Some colour fringing

Great lens with fast aperture and I.S! Use this lens for video work with C200 and C300mkii cameras. It's super sharp, light weight and a good zoom range for run and gun filming. Obviously not built as strong as an L series.... But at this price point you can't go wrong with this lens.

The image quality is par excellence! I am using this on my Canon T2i and it produces stupendous results. This lens is perfect for indoor low-light, portraits and even outdoor photography. I do notice that the IS makes a low humming sound while it is 'working'.

Sharp; IS; 2.8 fixed aperture; wide angle

very expensive for ef-s lens

It's the nearest thing to a pro-grade Canon EF-S standard zoom...

Fast; consistent; accurate autofocus; Generous f/2.8 maximum aperture

Big for an APS-C lens; No weather seals

Canon's EF-S 17-55mm f/2.8 IS USM is a premium zoom lens designed for EF-S bodies and announced alongside the EOS-30D digital SLR in February 2006. Boasting a constant f2.8 aperture throughout the range, it's the fastest standard focal length zoom lens available for Canon EF-S mount digital SLRs.

CanonEF-S 17-55mm f/2.8 IS USM Strengths: You get what you pay for with respect to image quality with this lens. The EF-S 17-55mm f/2.8 IS had 50% MTF and resolution scores closest to L-lenses or primes across the focal lengths tested.

The EF-S naming refers to the S hort-back focus design which is only compatible to APS-C EOS SLRs starting with the EOS 300D (Digital Rebel). EF-S lenses feature a protruding rear element which requires a special mirror design to avoid a collision of the mirror and the rear part of the lens.

This versatile standard zoom lens can cover everything from landscapes and cityscapes through to group, full-body and head-and-shoulders portraits. Although larger and heavier than Canon’s cheaper EF-S kit zooms, it affords greater control over depth of field for working with selective focus...