I've used this on a 50D and 7D mkII; it produces first class results on both.I'm sure if it were an EF lens and not an EF-S lens, it would have a red ring and be an L lens - the quality is that good

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

I wanted an ultra sharp lens with a fairly wide angle for food photography and this does the job. A Not as sharp as the EFS-35mm I also bought but pretty close. The lens is beautifully built, fairly heavy (which I like actually) due to the thick heavy lens glass.

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...

Very useful lens

coast

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

Peak resolution

Some colour fringing