This is a handsdown highly recommended lens if you guys are looking for upgrade. I am using Canon 60D cropped lens, I was deciding in either getting the 15-85mm standard lens or the Canon L 14-70mm "L" Lens.

CANON "L" MEANS LUXURY BUT AFFORDABLE PRICE

NOTHING

I am very satisfied with the quality of all of my Canon "L" lenses, the EF 17-40mm F/4.0 is no exception. I was looking for a wide angle zoom and thought I would rather have the F/2.8 but the price was a factor so I decided to go withe the slower F4.0.

I recently switched from Nikon to Canon and this was my first lens purchased for my 5D Mark II. My decision was made after reading several reviews from websites and blogs. I have to tell you they are all right! This lens takes sharp and vibrant pictures. Good bokeh too, though not the best.

[...] For weddings and outdoor photography, the focal length of this lens doesn't get any better. I had considered getting a comparable third brand lens (17-50 f2.8), but I ended up having to stop it down to f4 as it was soft wide open.

Consistent Output; Durable; Rugged; Strong Construction

I use to have the Tamron 17-50 f/2.8. I sacrificed the f2.8 max aperture for Canon L glass and build quality. I'm glad I did. My past Tamron accumulated much dust over its use and non-Canon lenses have poor resale value.

Weather-resistant construction; Affordable L series lens; Light weight

The lens hood blocks the built in flash in my former Canon 30D

This lens is well worth the price and I hate paying high prices for things. I would give this lens a 9/10.

Great detail and color in photos really can't ask for more here; I am a novice in the full frame camera world but I have to say this lens does everything I ask of it

Slow focus time and sometimes the lens can't focus at all if what you are looking at lacks enough detail to get the right sharpness; Zoom is very small and basic but decent for close ups

Have just gotten my first full frame camera and wanted a wide angle lens to go with my new camera, my crop frame wide angle lens sadly would not fit my new camera. I have always shot with canon cameras and canon L lens, but had now I have moved over to a Sony mirrorless a7ii full frame camera with a...

This is a good quality product that offers good value for money in the very short term. Although as with most products of this type, the value will deteriorate over time and should be able to get a cheaper version next year. It's a great device with plenty of features that I would highly recommend.

Good Value Product

Not many

I bought this lens for my crop sensor 50D, as i wanted a 'semi-wide' angle lens for landscapes and general photography. The build quality is typical L-series (i.e. fantastic) and the lens balances well on the 50D's body.

Hey thanks guys. We are a private New Zealand newspaper group and have just bought a lens for our photographers from Smifu. Yes we were nervous and did as much checking as we could before paying. Guess what? All went well.