There seems to be a lot of quality control issues with this lens. The main problen i have with this lens is "zoom creep". Its also hard to focus manually. Other than that, the lens is good. I traded the kit lens that came with the camera for this lens, and i'm glad i did.

good lens if you dodge a lemon

Poor build quality; zoom creep

Yes, I would recommend this to a friend

Consistent Output; Durable; Easily Interchangeable; Quick Focus; Sharp Focus; Strong Construction

Heavy

I would like to recommend this lens who are trying to upgrade from their kit lens. Other than a bit of chromatic aberration at the edges of leaves when zoomed. This lens rocks. I bought this lens when i bought my camera body. Till then this lens was my great companion.

This is a great lens. I've used this lense on both my Rebel XTi and my Canon 20D with great success. The autofocus is quick and the Image Stabilization is fantastic. And the lense is very easy to keep clean and provides outstanding images.

Consistent Output; Durable; Easily Interchangeable; Easy To Clean; Lightweight; Rugged; Sharp Focus; Strong Construction

None so far

This is a great lens. I've used this lense on both my Rebel XTi and my Canon 20D with great success. The autofocus is quick and the Image Stabilization is fantastic. And the lense is very easy to keep clean and provides outstanding images.

Consistent Output; Durable; Easily Interchangeable; Easy To Clean; Lightweight; Rugged; Sharp Focus; Strong Construction

None so far

Bonne lentille et très pratique pour toute occasion

Yes, I would recommend this to a friend

Consistent Output; Lightweight; Quick Focus; Sharp Focus

Weak Casing

I have even used this lens on my 7D and have shot unbelievable photos with it. It is absolutely a fantastic lens for the price. Half the price of L-glass of equivalent quality. Besides what others have said, this is a great, sturdy lens. Works fantastic even in less light. Nice all in one.

Wide zoom range; fast quiet focus; image stabilizer; 67mm; nice walk around and nice focus range even for video

Not a f2.8, not 800 dollars Not 77mm No optional extras (lens hood, UV filter) So get them; Heavy compared to kit lens and a lot larger, good construction usually is

Boasting an impressive 5x zoom range this is a versatile lens.....

Solid feel and 5x zoom range

Barrel distortion; wide-aperture resolution

This is an ideal gap lens for folks looking for fast glass and really good optical quality. I got this lens to replace my 18-55 and 18-200 lenses. The glas on this is better than both of those and I find this is more versatile for a walking around lens.