Canon 7D + 32GB CF + 17-55mm f/2.8: Smifu rocks! An absolute pleasure dealing with Mark. Nothing was too much trouble, every question answered promptly, and all promises honoured. Delivery ahead of expected date, all products as described. Overall best price, and even after-sales follow up.

Well-built, wide-aperture, APS-C zoom with three-stop image stabilisation

Peak resolution

Some colour fringing

This large-aperture EF-S Series standard zoom lens features an optical system consisting of 19 lens elements in 12 groups. A class Canon lens, this is one on the expensive side. A great upgrade lens, pictures taken will be crisp clear.

This large-aperture EF-S Series standard zoom lens features an optical system consisting of 19 lens elements in 12 groups. A class Canon lens, this is one on the expensive side. A great upgrade lens, pictures taken will be crisp clear.

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...

This is an excellent lens! The image quality with is lens is brilliant even wide open at f/2.8. The focus is very fast and quiet and It has full-time manual focus. The image stabilisation comes in handy when shooting hand held. What more could you want?

Superior build quality; Super-sharp images; Fast auto-focus

The Canon EF-S 17-55mm f/2.8 IS USM ($1,179 direct) is the top-end standard zoom lens for Canon APS-C cameras . Rebel D-SLRs are generally bundled with the EF-S 18-55mm f/3.5-5.6 IS II lens that, while quite sharp, has a relatively slow f-stop, often requiring you to use the camera's flash in dimmer...

Big; Expensive; Soft at 55mm

The Canon EF-S 17-55mm f/2.8 IS USM ($1,179 direct)  is the top-end standard zoom lens for Canon APS-C cameras. Rebel D-SLRs are generally bundled with the EF-S 18-55mm f/3.5-5.6 IS II  lens that, while quite sharp, has a relatively slow f-stop, often requiring you to use the camera's flash in...

This lens while being a bit expensive is worth every penny. While being extremely sharp and a constant 2.8 this lens is above any 17-50 lens out there in its class.

Constant 2.8 throughout the whole zoom range

Nothing

The optical quality of this lens is excellent. It allows you zoom from 17-55mm at a constant f2.8. Other zoom lenses will change the aperture but it can hold this constant as you zoom so it does not change your timing. The wide aperture makes it great for shooting parties indoors.

Consistent Output; Fast / accurate auto-focus; Nice Bokeh

Heavy