Canon EF wide-angle zoom lens 17-40mm

Mfg. Part: 8806A002 | CDW Part: 473700 | UNSPSC: 45121603
$799.99Advertised Price
Lease Option ($24.96 /month) Lease Availability

Have leasing questions? Let us know how can we help.

Note: Leasing is available to businesses only. Leasing is not available to individuals.
Mon-Fri 7am-7:30pm CT
Availability:4-6 days
Orders placed today will ship within 6 days
  • Wide-angle zoom lens
  • 17 mm
  • 40 mm
  • f/4.0 L USM
  • Canon EF
View More
Product Overview
Main Features
  • Wide-angle zoom lens
  • 17 mm
  • 40 mm
  • f/4.0 L USM
  • Canon EF
77mm filter diameter 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.
Technical Specifications
Specifications are provided by the manufacturer. Refer to the manufacturer for an explanation of the print speed and other ratings.
Dimensions & Weight
Diameter: 3.3 in
Length: 3.8 in
Weight: 17.64 oz

Brand: Canon
Manufacturer: Canon
Packaged Quantity: 1
Product Line: Canon EF

Lens System
Diaphragm Blades: 7
Element Qty: 12
Features: Aspherical lens , Full-time manual focusing , Internal focusing system , Rear filter mount , Rear focusing system , UD glass , Ultrasonic Motor (USM)
Filter Size: 77 mm
Focus Adjustment: Automatic , Manual
Group Qty: 9
Intended For: Digital SLR
Lens Aperture: F/4.0
Max Focal Length: 40 mm
Max View Angle: 104 degrees
Min Focal Length: 17 mm
Min Focus Distance: 11 in
Min View Angle: 57.5 degrees
Optical Zoom: 2.4
Series: L USM
Special Functions: Wide angle , Zoom
System Type: Lens
Type: Wide-angle zoom lens
Zoom Adjustment: Manual

Lens System Mounting
Mounting Type: Canon EF

Included Accessories: dust cap , Lens cap

Optical System
Lens Coating: Super Spectra coating
Magnification: 0.24

Miscellaneous (CDW)
Compatible With:
Canon EOS 1000D
Canon EOS 1D
Canon EOS 1D Mark II
Canon EOS 1D Mark II N
Canon EOS 1D Mark III
Canon EOS 1D Mark IV
Canon EOS 1Ds
Canon EOS 1Ds Mark II
Canon EOS 1Ds Mark III
Canon EOS 20D
Canon EOS 20Da
Canon EOS 300D
Canon EOS 30D
Canon EOS 350D
Canon EOS 400D
Canon EOS 40D
Canon EOS 450D
Canon EOS 500D
Canon EOS 50D
Canon EOS 5D
Canon EOS 5D Mark II
Canon EOS 7D
Canon EOS Digital Rebel
Canon EOS Digital Rebel XT
Canon EOS Digital Rebel XTi
Canon EOS Kiss Digital
Canon EOS Kiss Digital N
Canon EOS Kiss Digital X
Canon EOS Kiss F
Canon EOS Kiss X2
Canon EOS Kiss X3
Canon EOS Rebel T1i
Canon EOS Rebel XS
Canon EOS Rebel XSi

Product Reviews
Rated 4.6 out of 5 by 55reviewers.
Rated 5 out of 5 by 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. September 27, 2016
Rated 5 out of 5 by Razor sharp shots, fast auto focus This is an outstanding workhorse lens. Images come out crystal clear, and the build is everything you expect from an "L" series lens. I couldn't be happier with it. March 4, 2016
Rated 5 out of 5 by Fantastic Little Lens Love this lens. I needed a higher quality wide angle lens that the kit EF-S lens that came with my Crop camera as I knew I was going to go FF eventually.The kit was slow to focus and the images were just not that sharp.Once I put the 17-40 L on my cam body I knew I had the right lens. It has great image quality and focuses extremely quickly. The L build quality has stood up to one accidental drop with absolutely no issues aftwards.My only issue is the not great aperture of F4. I knew that going in and expected it, but one more stop would have made this the perfect lens. For the price, you just can not beat it. July 10, 2014
Rated 5 out of 5 by Affordable high quality landscape lens I have owned this for 2 years now and I have loved every second of it. It was my first L series lens and was my only lens for a while. You just can't beat the quality at the price point. Focusing is silent and fast, build quality is great. It is a little soft wide open in the corners, but that is expected with an ultra wide lens. It can easily still be used wide open without loss of image quality. The distortion is well controlled and what remains can be corrected easily in LR. I think it has the perfect amount of distortion that can either be used as an advantage or corrected. One of the things that attracted me to the lens was the weight or how light it is. When you hike in the woods every ounce counts. Comparing it to the 16-35 it is significantly lighter. The close focusing distance has made the f/4 max aperture a non issues outdoors with depth of field. The extra stop could be helpful for wedding or indoor shooting. If you are doing outdoor shooting and want ultra wide angle this is a great lens. June 3, 2014
Rated 5 out of 5 by great price, great lens I have carried this lens for little over a year now, using it mainly for real estate photography and landscapes. For this purpose, there was no need to opt for the 16-35 f/2.8, which is double the price. The lens is also great for party shots, when you need to get a big group in the picture. Although there is some distortion, thats what you get at 17mm, with any lens. Between the weight, price, build, and sharpness, this is one of the best "L" lenses that Canon makes. I would suggest this lens to anyone interested in landscape photography, or simply want a wide angle to add to their kit. In my opinion, f/4 is plenty on an ultra wide angle. January 23, 2014
Rated 5 out of 5 by Lord Of Land Scapes This lens is sharp from front to back and is one of the sharpest in its class, its the only super wide I have used for years and still is my go to lens for the shot. The quality is well build and weather sealed. It never looked faded or used, flare is under controlled F4 is very sharp and can be used as a macro lens as well, great for portraits. You will not be disappointed with this lens. November 23, 2013
Rated 5 out of 5 by Inexpensive Trick After reading an article about what lenses to carry I noticed a pattern regarding my shooting habits and the habits of the author, I am constantly pushing the wide side of my kit lens (18-55) when I had my crop frame for those get everyone in the picture or get the whole landscape shots. Recently moved to full frame and decided I'd pick up a 17-40 and use my 50mm nifty (1.8) to cover slightly tighter but shallow DOF. Can't say I'm unhappy with the lens. Slight distortion which I noticed even with my kit lens, simply put any zoom lens will give you some distortion of images which require post processing, but no complaints outside of the ordinary like another review recently posted. Definately a must have, you need your fast prime, your wide, maybe your regular zoom, and your telephoto something. Fits the bill without as large of a bill as the 16-35 2.8 variant.Cons: No IS at F4. At F4 even with my 5DIII, it could use it in low light, I can see where the 2.8 would be nice but I can't justify the price difference for it. July 16, 2013
Rated 2 out of 5 by 17-40 Very 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. June 21, 2013
  • 2016-10-24 T09:14:34.147-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_55, tr_55
  • loc_en_US, sid_473700, prod, sort_default
2 3 4 5... 7next>>
Adding to Cart...
10/25/2016 1:49:53 AM
^ Back to Top

Maximum 300 characters
An account manager will email you within one business day to confirm your request.

Your Quote has been submitted

What Happens Next? A confirmation email is on its way. Within one business day, you will be contacted by an Account Manager to finalize your quote.


Something went wrong.

Please try again later.

License Selector

    The license selector is not currently available. Please try again later.