Canon EF wide-angle zoom lens 17-40mm

Mfg.Part: 8806A002 | CDW Part: 473700 | UNSPSC: 45121603
Availability: 10-12 Days
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Product Details
  • angle zoom lens
  • 17 mm
  • 40 mm
  • f/4.0 L USM
  • Canon EF
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Canon EF wide-angle zoom lens 17-40mm
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Product Overview

Main Features
  • angle zoom lens
  • 17 mm
  • 40 mm
  • f/4.0 L USM
  • Canon EF
The EF17-40mm f/4L USM is an ultra wide angle Canon EF zoom lens meant for professional and high amateur SLR EOS camera users.

While it is an excellent lens when used with an analogue SLR camera, the EF17-40mm f/4L USM is especially well suited for digital SLR cameras with an imaging sensor size smaller than the 35mm format. Indeed on such digital SLR cameras these focal lengths can give an angle of view approximately equivalent to that of a 28-70mm lens used on a 35mm camera, which makes it the ideal standard zoom lens.

The EF17-40mm f/4L USM has 12 lens elements arranged in 9 groups. Super Spectra Coating on the elements ensures excellent color balance and minimizes ghosting and flare. To provide superb image quality over a 17-40mm zoom range the lens uses three aspheric elements of two different types, while Super UD (Ultra-low Dispersion) glass is used to prevent the chromatic aberrations that often can degrade the subject edge clarity.

Minimum focusing distance is just 28mm throughout the entire zoom range. The Auto-focus works silently and quickly thanks to a fast central processing unit with an improved AF algorithm. You can override AF mode with manual focus should you wish. Controlled by an electromagnetic diaphragm, the EF17-40mm f/4L USM's circular aperture can achieve a more attractive appearance to out of focus background areas in a picture. The front of the lens does not rotate as you focus. This means, for example, that polarizing filters still function effectively as you zoom in and out. At the rear of the lens there's a drop-in gelatin filter holder. Highly resistant to moisture and dust, the EF17-40mm f/4L USM is ideally suited for use in harsh environments. Environment friendly lead-free glass is used throughout its construction.
Canon EF wide-angle zoom lens 17-40mm is rated4.42 out of5 by24.
Rated 5 out of 5 by from An outstanding valueI've used this lens for about 2 years now and am extremely happy with the results. CAs are a bit of an issue in strongly backlit areas (trees against light skies), but nothing software can't easliy fix. I use it mostly for scenics and even at apertures around f-16, where sharpness in many lenses starts to fall, it is still critically sharp. Also nice is the light weight and tough, L build. My only gripe is the big hood, but it's not such a big deal.
Date published: 2009-10-12T00:00:00-04:00
Rated 5 out of 5 by from Great value for the buck!Was looking for a used 16-35 mm zoom for shooting landscapes and came across this lens. It may not be as fast but it is as sharp and just as reliable. Depending on your needs, this is an excellent lens either as your go-to lens or as a back-up.
Date published: 2016-09-27T00:00:00-04:00
Rated 5 out of 5 by from A beastIt is extremely fast in focusing. Beautiful colors, and super-sharp images. I use it for landscape photography and absolutely love it. It is relatively light weight and one to-go lens that I carry with me all the time.
Date published: 2013-01-07T00:00:00-05:00
Rated 5 out of 5 by from Well Worth The priceI recently purchased this lens and it was totally worth it. This lens produces sharp images. The lens feels sturdy and it is very well built. This lens works ok in low light conditions but if you don't have a wide angle lens definitely buy this one.
Date published: 2011-09-03T00:00:00-04:00
Rated 5 out of 5 by from extremely happy!!extremely sharp lens. light weight. easy to use. love it!
Date published: 2012-08-17T00:00:00-04:00
Rated 5 out of 5 by from The perfect field lensI purchased this lens in May 2008 to replacemy prime lens the 28mm 2,8 & 50mm 1.8 lens range.Although it is stop slower then my 28mm version- the sharpness,weight and quality of this lens is fantastic for the price.
Date published: 2009-01-09T00:00:00-05:00
Rated 5 out of 5 by from OutstandingThis is one of the better lens from Canon. Like any other lens, you have to know the features and limits. It works wonderful.
Date published: 2017-10-01T00:00:00-04:00
Rated 5 out of 5 by from color beautyI love this lens. It captures the most amazing colors in my images. I do not even have to use photoshop to increase saturation.
Date published: 2009-03-04T00:00:00-05:00
Rated 5 out of 5 by from Very nice lensThis is a great lens with a very nice 17-40mm range. It takes crisp photos. I am very pleased with it.
Date published: 2019-12-26T00:00:00-05:00
Rated 5 out of 5 by from Great lensGreat lens, sharp, fast and at a very good priceFirst had lens in 2008, was stolen in 2012. Just bought another one in January 2019 and regret not replacing it sooner.
Date published: 2019-03-14T00:00:00-04:00
Rated 5 out of 5 by from Best for the buckRazor sharp, solid and a great value.I bought this on sale and I was worth every penny. good Fast focus, very sharp and smooth bokeh.
Date published: 2016-09-08T00:00:00-04:00
Rated 5 out of 5 by from Excellent for the AmateursBy no means am I an expert at photography although I love to take photos. I've always dreamed about owning a super high quality camera and lens kit. Last year I took the plunge. I purchased a Canon 5D (well discounted after the Mark II release), Canon 70-300MM IS USM lens, Canon 28-138MM IS USM and the Canon 17-40MM USM I'm writing this review on. I read many of the reviews users have posted and from an amateurs perspective this lens is fantastic. It works very well with my 5D producing very high quality photos both indoors and out. I use it all the time for indoor shooting with my 5D and an attached Canon 580 Flash. The results are terrific. Outside the photos are crisp although, and I apologize I don't know the right term, the edges seem to compress in. It doesn't bother me one bit since overall the photos are gorgeous. I know what I purchased is more than what the average person would invest in but I wanted a fantastic kit that I could use for years to come. The 17-40MM lens has worked perfectly from the heat of the beach to the glaciers of Alaska. I really love this lens and would highly recommend it. Thanks for reading...
Date published: 2009-08-05T00:00:00-04:00
Rated 5 out of 5 by from Excellent wide angle AND it's a zoomYou'll not go wrong with this lens; it's fast, accurate and sharp throughout its range.I'm so sold on "L" glass, it's all I use.
Date published: 2011-04-10T00:00:00-04:00
Rated 5 out of 5 by from 17-40Very soft at F4, only ok at 5.6, sharp at F8, F11. For the L Lens hype and the price I expected better. My 18-55 kit lens is as sharp and in some cases as at F4 sharper. The lens was replaced the same week I bought it and the second one was the same. I got the money back.
Date published: 2013-06-21T00:00:00-04:00
Rated 5 out of 5 by from nullGood bargain for asked price. Fits to landscape photography.
Date published: 2009-02-17T00:00:00-05:00
Rated 5 out of 5 by from Good InvestmentVery sharp images low price, great build quality, and super fast autofocus. definitely would recommend this to a friend.
Date published: 2012-10-27T00:00:00-04:00
Rated 5 out of 5 by from Not that sharpI've had this lens for a few years and have used it on both crop and full frame bodies.I don't think the lens is that sharp. Maybe F/8 and 11? Wider is too soft, and narrower suffers from defraction. I find that people who like this lens are generally coming from kit zooms. I came from medium format primes and had higher expectations. Other than IQ, the lens is built quite well made and no complaints there. It does tend to vignette a bit on a FF body, but generally that's fixable.
Date published: 2013-05-06T00:00:00-04:00
Rated 5 out of 5 by from Utility lensThis is a great all around lens. When compared to the 24-70mm F2.8, I felt it was much more useful on a camera, a 40D to be exact, with a crop sensor. Unlike the 24-70, with the 17-40, I dont find myself trying to cramp my head into the corner of the room in order to be able to fit everyone in the photo. Extremely clear photos paired with ultra fast focusing speed makes this lens a knockout for just about any photo job.
Date published: 2010-04-14T00:00:00-04:00
Rated 5 out of 5 by from Fantastic Lens!I bought this lens in December of 2010 and I absolutely Love it! What can I say, It's a Canon L series lens! The build is substantial in weight and the Glass is Superb!This lens will take you from Ho-hum photos to SPECTACULAR Photos!
Date published: 2011-03-22T00:00:00-04:00
Rated 5 out of 5 by from GreatGood standard zoom lens for aps-c. Amazing lens to use with the Canon 80D!
Date published: 2019-07-07T00:00:00-04:00
Rated 5 out of 5 by from Affordable full frame wideangleIt's the best, afforable wide-angle for full frame. No sense to use it on APS-C as there are better alternatives. I actually liked the 10-22 on crop better than this.Nice and sharp, good saturation, some vignetting - especially at large apertures.
Date published: 2010-08-10T00:00:00-04:00
Rated 5 out of 5 by from affordable qualityI've recently purchased this lens to add to my 24-105L lens. From everthing I've seen so far, Its a wonderful lens. Very sharp images and quick focus.
Date published: 2009-09-24T00:00:00-04:00
Rated 5 out of 5 by from Soft!!!I owned this lens for quite a while, but rarely used it because the image quality was not acceptable. This would be a very useful focal length / range and it is too bad that it is not at all sharp.
Date published: 2010-09-04T00:00:00-04:00
Rated 5 out of 5 by from Disappointing Image QualityI have been quite disappointed in the quality of images produced by the 17-40mm L USM lens. With the L designation, wide-angle optics, and the lofty price, I'd expected tack-sharp image quality. Instead I receive fair to poor results whether focused manually or automatically and over the full range of zoom focal length. Making matters worse, I cannot locate ANY reference to Canon Warranty support on this Web site. Now both disappointed and angry.
Date published: 2009-07-15T00:00:00-04:00