I have been a Canon enthusiast for years using most of their powershots S, SD, G series.

Compact for L lens; sharp; good colors; good built

no IS; not good for indoors/poor lighting

I was surprised to get an "L" lens at this price. This one definitely deserves the "L" in build and optics. It'd been my go-to lens since I bought it in March. Each lens has its odn personality, and I really like this one. My clients like it too.

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

Heavy

Excellent quality lens even with a full frame. I bought this to complement my 35mm F1.4L and my Carl Zeiss 18mm F3.5 Distagon. My 5D mark 3 can correct the aberrations of that lens. If you don't need 2.8 this is the only zoom choice. L quality with not much weight.

In the early days of digital SLRs, before the arrival of its smaller-format EF-S lenses, the 17-40mm was one of the mainstays of the Canon range, a super-wideangle zoom for the full-frame EOS 1Ds but also the nearest thing at the time to a ‘standard' zoom for the newer, smaller-format EOS models

I was surprised to get an "L" lens at this price. This one definitely deserves the "L" in build and optics. It'd been my go-to lens since I bought it in March. Each lens has its odn personality, and I really like this one. My clients like it too.

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

Heavy

This lens has been my favorite lens for over a year now, being equivalent to a 27-64mm it falls into the perfect standard zoom range.

Compact; Build quality

I loved he price I got this lens for and the quality is very nice, I am happy to have got it from homeshop and the lens can focus to a very close object also.

I was surprised to get an "L" lens at this price. This one definitely deserves the "L" in build and optics. It'd been my go-to lens since I bought it in March. Each lens has its odn personality, and I really like this one. My clients like it too.

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

Heavy

The only thing I would comment on is that there is not enough "blur" for some portraits, but I knew that when I bought it. It produces great pictures! The clarity is wonderful!

Easy To Use; Good price value; High quality pictures; Quality Construction

like weight not so expensive L lens

Nothing at this price point