I have had this lens for one and a half years, and it has been a nice mate for my camera. It is great: very sharp from 15 to 85 mm (although not so much in the corners at its widest aperture), very good at f11 for landscape photography.

Sharp; quick focus; good range

Non constant aperture: f5.6 is a bit slow

At a casual glance Canon's 15-85mm lens looks inferior to Nikon's 16-85mm in one important aspect: it has only a single-mode image stabilisation system against the Nikkor's dual-mode system.

Excellent handling and IS system

Drop-off in MTF curves

I purchased my EOS 550D as a body only to use this as the primary lens (rather than the 18-55mm) and I have not regretted it at all. The extra width provides a better working space when taking group photos or need that little bit more of the landscape, as well as a decent amount of zoom that your...

Superior build quality; Reliable; Durable; Easy to use

Having a much higher optical quality than its predecessor (17-55mm) the Canon EF-S 15-85mm f/3.5-5.6 IS USM Lens is an excellent all purpose lens that will be perfect for the APS-C (crop) sensor camera.range. Ideal for landscapes, street photography, portraits etc.

This lens has definitely made a difference in my ability to capture tack sharp images while being handheld. Love the focal range and the minimum focusing distance is adequate for most flower photography that is not micro.

Consistent Output; Easily Interchangeable; Fast / accurate auto-focus; Nice Bokeh; Strong Construction

I bought this to replace the kit lens (18-55) for my 450d, I also got to put my 28-75mm on the shelf. The focal range of this lens was the big attraction for me. I am happy with the look and feel of this lens, nice and tight, no creeping with camera down.

3 years no interest when I purchased it online

wide angle performance; EF-S mount

Excellent optics for a non-L lens. I recommend this at the main "walkaround" lens for crop-sensor Canon dSLRs. It's on my 60D or 80D for 90% of shots.

Used this lens and zoom telephoto as our only 2 lenses during a recent trip to Maui. Did well for me and the wide angle shots look great!

Consistent Output; Easily Interchangeable

I purchased this lens as a replacement for the 18-55mm kit lens that came with my T3i. I was looking for a good "walkaround" lens, and this fit the bill perfectly! The lens feels very solid..

Using with a Canon 7D for wedding and event photography, it has great response and the IS makes it worth the money.

Fast / accurate auto-focus; Strong Construction

Heavy