Frequently Bought Together
What Other Items Do Customers Buy After Viewing This Item?
Product Details
Would you like to update product info or give feedback on images? |
Product Description
From the Manufacturer
Broaden your perspective with the Canon EF 17-40mm ultra-wide-angle zoom lens. Ideal for both film and digital SLR cameras, the lens offers three aspherical lens elements in addition to a Super UD (ultra-low dispersion) glass element, creating superior optics in all conditions. In addition, the lens focuses as close as 11 inches (0.28mm), and offers both Canon's full-time manual focus and a powerful ring-type ultra-sonic monitor (USM) that produces fast and silent autofocus. Other features include a constant f/4 maximum aperture, the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters, and optical coatings optimized for use with digital cameras. Boasting weather-resistant construction similar to other high-end L-series cameras, the lens carries a one-year warranty.
- Focal length: 17-40mm
- Maximum aperture: 1:4
- Lens construction: 12 elements in 9 groups
- Diagonal angle of view: 104 to 57 degrees (at 30 feet)
- Focus adjustment: Inner focusing system with USM
- Closest focusing distance: 0.9 feet
- Zoom system: Rotating type
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter, 3.8 inches long
- Weight: 1.1 pounds
About half the price of the 16-35 f/2.8 lens, this L-series lens has an entirely new optical design with three Aspherical elements and a Super UD-glass element. The combination provides superb contrast and sharpness, even at the widest settings. It's ideal for both film and digital SLRs, and features the same weather-resistant design, rear gel filter holder, and high-speed Ultrasonic Motor as the EF 16-35mm lens.
What's in the box: Canon EF 17-40mm f/4L USM Lens,E-77U 77mm Snap-On Lens Cap,Lens Dust Cap E (Rear),EW-83E Lens Hood,Lens Case LP1319 and 1-Year Warranty.
Available Warranties for This Item
Customer Reviews
Most Helpful Customer Reviews
708 of 718 people found the following review helpful
The walkaround lens. This very topic leads to a heated discussion among DSLR photographers.
First, determine your budget, focal length, and aperture needs.
If you frequently find yourself zooming out to get everything in a frame, you will want a wide angle lens such as this. If you frequently find yourself zooming in, this is not the lens for you. On a full frame body such as Canon EOS 5D, this lens becomes ULTRA wide angle. On an APS-C crop body such as Digital Rebel XTi (which I used for this review), it becomes MEDIUM wide angle. But thanks to 1.6x crop factor, this lens expands to more usable 35mm equivalent focal length of 27 to 64mm.
Second, audition the lens if you can.
By definition, a walkaround lens should be relatively portable. At 1.1 lbs., Canon's EF 17-40mm f/4L USM is neither super light nor neck breakingly heavy. In fact, it weighs almost the same as Digital Rebel XTi -- really nice balance. The lens feels very solid with supreme build quality that only L-series lenses offer. Although this lens is weather proof and therefore sealed against liquid and dust, I strongly recommend getting a 77mm filter to protect the front lens element. With it, this lens is made to last.
In terms of looks and feel, it doesn't get much better. Its rubberized full-time inner focus manual ring USM focuses smoothly, quietly, and quickly. Since it's inner focus, the lens will not extend beyond its metal casing whether you zoom in or out. The focus window shows focusing distance from 0.28 meter (0.92 feet) to infinity. The focal length marker indicates 17, 20, 24, 28, 35, and 40mm. The lens exudes quality from tip to tip.
You may tolerate heavier lens or may not mind lesser build quality of cheaper lenses. A walkaround lens will be used very often, so make sure you will be comfortable with it.
This lens is famous for saturated color and deep contrast. Its images are simply stunning. At 17mm wide angle, barrel distortion is noticeable but relatively mild. From 24mm to 40mm, its images are distortion free and perfectly suited at capturing people.
Vignetting (corner darkness) is minimal with mild chroma abberrations (color shadows). At f/4 aperture, details become noticeably softer toward the edges. The center region is very sharp and at f/5.6, edges remain fairy sharp. Thanks to 7 diaphragm blades, this lens can produce very nice bokeh at 40mm (blur effects).
One of the most cited weaknesses is the f/4 aperture. In my experience, a bump in the ISO speed and steady hands are all you need to take well focused images indoor. On the other hand, if you are shooting with very little amount of light, you might wish for f/2.8 or image stabilizer. Although the difference between f/4 and f/2.8 is just 1 stop, my other lens, Canon EF 24-70mm f/2.8L USM (too heavy to be my walkaround lens) easily outperforms in such challenging situations. But by and large, I was not handicapped by the f/4 aperture.
Some of the main competitions (sorted by price):
- Sigma AF 17-70mm f/2.8-4.5 DC macro: Good zoom range with macro, and generally solid performance if you can get a good sample. It does suffer from a bit slow focus mechanism, soft corner, and chroma aberrations. Works only with EF-S mount.
- Sigma 18-50mm f/2.8 EX DC: Very good value for f/2.8 aperture, but Tamron's 17-50mm is a bit better lens overall. Works only with EF-S mount.
- Canon EF-S 17-85mm f/4-5.6 IS USM: This "traveler's lens" has a wider focal range than most wide angle lenses (widest among Canon) and is equipped with an image stabilizer. While it is a Jack of many trades, it is the master of none. Every lenses on this list will perform better at particular focal length. Then again, none of the lenses on this list has as wide focal range. It is famous for extreme barrel distortion at 17mm and chroma aberrations. Works only with EF-S mount.
- Tamron SP AF 17-50mm f/2.8 Di II LD Aspherical (IF): This is the most direct competitor. It takes sharper images with faster aperture while costing less. Both the build and focus mechanism are significantly worse, but should be good enough for many. Works only with EF-S mount.
- Canon EF-S 17-55mm f/2.8 IS USM: This is THE reference, if you can afford it. Its images have razor sharp details and great performance all around (minus vignetting, which is typical of EF-S lenses). The build quality is worse than L-series but still pretty good. Works only with EF-S mount. This is the best EF-S lens hands down.
- Canon EF 16-35mm f/2.8L USM: One of the most expensive wide angle zoom lenses. It's larger and heavier, but has f/2.8 aperture.
This is how Canon EF 17-40mm f/4 USM stacks up.
Pros:
- Among the very best build quality.
- Excellent, buttery smooth, super fast front-focus system.
- Top notch color and contrast. Very sharp center resolution.
- Almost non-existent vignetting, generally low distortion, and well controlled chroma abberrations.
- Ideal weight and size for walkaround purpose
Cons:
- Edge softness at f/4 aperture.
- Narrower focal length than most competing lenses.
- Slower than some third party lenses.
All in all, this is an excellent wide angle walkaround lens. It may not offer the most bang for the buck, but if you value full frame compatibility (EF lens mount) and excellent build quality, this is the default choice. This lens comes with a nice pouch and a lens hood. I find the hood to be somewhat ridiculously shaped and because the lens is resistant to flare, I do not use it often when shooting outdoor.
First, determine your budget, focal length, and aperture needs.
If you frequently find yourself zooming out to get everything in a frame, you will want a wide angle lens such as this. If you frequently find yourself zooming in, this is not the lens for you. On a full frame body such as Canon EOS 5D, this lens becomes ULTRA wide angle. On an APS-C crop body such as Digital Rebel XTi (which I used for this review), it becomes MEDIUM wide angle. But thanks to 1.6x crop factor, this lens expands to more usable 35mm equivalent focal length of 27 to 64mm.
Second, audition the lens if you can.
By definition, a walkaround lens should be relatively portable. At 1.1 lbs., Canon's EF 17-40mm f/4L USM is neither super light nor neck breakingly heavy. In fact, it weighs almost the same as Digital Rebel XTi -- really nice balance. The lens feels very solid with supreme build quality that only L-series lenses offer. Although this lens is weather proof and therefore sealed against liquid and dust, I strongly recommend getting a 77mm filter to protect the front lens element. With it, this lens is made to last.
In terms of looks and feel, it doesn't get much better. Its rubberized full-time inner focus manual ring USM focuses smoothly, quietly, and quickly. Since it's inner focus, the lens will not extend beyond its metal casing whether you zoom in or out. The focus window shows focusing distance from 0.28 meter (0.92 feet) to infinity. The focal length marker indicates 17, 20, 24, 28, 35, and 40mm. The lens exudes quality from tip to tip.
You may tolerate heavier lens or may not mind lesser build quality of cheaper lenses. A walkaround lens will be used very often, so make sure you will be comfortable with it.
This lens is famous for saturated color and deep contrast. Its images are simply stunning. At 17mm wide angle, barrel distortion is noticeable but relatively mild. From 24mm to 40mm, its images are distortion free and perfectly suited at capturing people.
Vignetting (corner darkness) is minimal with mild chroma abberrations (color shadows). At f/4 aperture, details become noticeably softer toward the edges. The center region is very sharp and at f/5.6, edges remain fairy sharp. Thanks to 7 diaphragm blades, this lens can produce very nice bokeh at 40mm (blur effects).
One of the most cited weaknesses is the f/4 aperture. In my experience, a bump in the ISO speed and steady hands are all you need to take well focused images indoor. On the other hand, if you are shooting with very little amount of light, you might wish for f/2.8 or image stabilizer. Although the difference between f/4 and f/2.8 is just 1 stop, my other lens, Canon EF 24-70mm f/2.8L USM (too heavy to be my walkaround lens) easily outperforms in such challenging situations. But by and large, I was not handicapped by the f/4 aperture.
Some of the main competitions (sorted by price):
- Sigma AF 17-70mm f/2.8-4.5 DC macro: Good zoom range with macro, and generally solid performance if you can get a good sample. It does suffer from a bit slow focus mechanism, soft corner, and chroma aberrations. Works only with EF-S mount.
- Sigma 18-50mm f/2.8 EX DC: Very good value for f/2.8 aperture, but Tamron's 17-50mm is a bit better lens overall. Works only with EF-S mount.
- Canon EF-S 17-85mm f/4-5.6 IS USM: This "traveler's lens" has a wider focal range than most wide angle lenses (widest among Canon) and is equipped with an image stabilizer. While it is a Jack of many trades, it is the master of none. Every lenses on this list will perform better at particular focal length. Then again, none of the lenses on this list has as wide focal range. It is famous for extreme barrel distortion at 17mm and chroma aberrations. Works only with EF-S mount.
- Tamron SP AF 17-50mm f/2.8 Di II LD Aspherical (IF): This is the most direct competitor. It takes sharper images with faster aperture while costing less. Both the build and focus mechanism are significantly worse, but should be good enough for many. Works only with EF-S mount.
- Canon EF-S 17-55mm f/2.8 IS USM: This is THE reference, if you can afford it. Its images have razor sharp details and great performance all around (minus vignetting, which is typical of EF-S lenses). The build quality is worse than L-series but still pretty good. Works only with EF-S mount. This is the best EF-S lens hands down.
- Canon EF 16-35mm f/2.8L USM: One of the most expensive wide angle zoom lenses. It's larger and heavier, but has f/2.8 aperture.
This is how Canon EF 17-40mm f/4 USM stacks up.
Pros:
- Among the very best build quality.
- Excellent, buttery smooth, super fast front-focus system.
- Top notch color and contrast. Very sharp center resolution.
- Almost non-existent vignetting, generally low distortion, and well controlled chroma abberrations.
- Ideal weight and size for walkaround purpose
Cons:
- Edge softness at f/4 aperture.
- Narrower focal length than most competing lenses.
- Slower than some third party lenses.
All in all, this is an excellent wide angle walkaround lens. It may not offer the most bang for the buck, but if you value full frame compatibility (EF lens mount) and excellent build quality, this is the default choice. This lens comes with a nice pouch and a lens hood. I find the hood to be somewhat ridiculously shaped and because the lens is resistant to flare, I do not use it often when shooting outdoor.
120 of 121 people found the following review helpful
By Genobambino
Amazon Verified Purchase
No one lens accomplishes every photographic objective. Canon makes each lens at every price point well-suited to various tasks, but with limitations that can only be overcome by graduating to the next higher priced but similar item. A case in point: the wide-angle zooms.
The 17-40mm f/4 is one of Canon's best deals in L-series glass. You have to spend twice as much to get a lens of similar quality, but just one stop faster. Does this make the more-expensive EF 16-35 f/2.8L a ripoff? Not for its own specific use: the extra stop gives you the speed to shoot in more indoor situations. Not all photographers need this. When indoors, we're often taking pictures of people, which are better suited to lengths around 50-100mm. To capture sweeping panoramas of parlors for Architectural Digest (or Coldwell Banker) the f/2.8 is the better lens and worth the step up in price, though in many cases you could use the f/4 lens with a tripod. All this means is that the f/2.8 is priced for professional specialists whereas the f/4 is for more general use. My bigger point is that Canon has its whole lineup positioned: the differences across lenses are specific and appropriately priced, which is good news for the consumer. It's hard to make a mistake buying homegrown Canon lenses, especially L-series lenses. You just have to figure out which set of two or three suits your range of uses.
The 17-40mm is a steal for people who need a walkaround lens for travel and outdoor photography. The shorter focal lengths of the zoom are great on a digital body, with nice reach and minimal distortion; just an ability to grab up landscape and wide situations end-to-end, even when standing close. The focal lengths around 40mm are tight enough for portraits and other local detail. Colors are strong and convincing; contrast deep and impactful. The lens itself is small enough and light enough to grab-and-go, but nicely machined, with solid fit and finish. It has an instantly recognizable profile, with the added bonus of the red ring.
This lens, plus a 70-200mm f/2.8 telescope and a nice fast fixed lens in the range betwixt are all you need. On vacation, and in most outdoor situations, the 17-40mm alone suffices. It makes a good first L-lens, and a staple in the arsenal.
The 17-40mm f/4 is one of Canon's best deals in L-series glass. You have to spend twice as much to get a lens of similar quality, but just one stop faster. Does this make the more-expensive EF 16-35 f/2.8L a ripoff? Not for its own specific use: the extra stop gives you the speed to shoot in more indoor situations. Not all photographers need this. When indoors, we're often taking pictures of people, which are better suited to lengths around 50-100mm. To capture sweeping panoramas of parlors for Architectural Digest (or Coldwell Banker) the f/2.8 is the better lens and worth the step up in price, though in many cases you could use the f/4 lens with a tripod. All this means is that the f/2.8 is priced for professional specialists whereas the f/4 is for more general use. My bigger point is that Canon has its whole lineup positioned: the differences across lenses are specific and appropriately priced, which is good news for the consumer. It's hard to make a mistake buying homegrown Canon lenses, especially L-series lenses. You just have to figure out which set of two or three suits your range of uses.
The 17-40mm is a steal for people who need a walkaround lens for travel and outdoor photography. The shorter focal lengths of the zoom are great on a digital body, with nice reach and minimal distortion; just an ability to grab up landscape and wide situations end-to-end, even when standing close. The focal lengths around 40mm are tight enough for portraits and other local detail. Colors are strong and convincing; contrast deep and impactful. The lens itself is small enough and light enough to grab-and-go, but nicely machined, with solid fit and finish. It has an instantly recognizable profile, with the added bonus of the red ring.
This lens, plus a 70-200mm f/2.8 telescope and a nice fast fixed lens in the range betwixt are all you need. On vacation, and in most outdoor situations, the 17-40mm alone suffices. It makes a good first L-lens, and a staple in the arsenal.
432 of 460 people found the following review helpful
(I really want to give this lens 3.5 stars)
This review is written from the viewpoint of someone whom has used many L-class lenses, and as such will be a little harder on this piece of glass. If you've never used a Canon L lens and you purchase this one, I guarantee you'll be quite pleased with your purchase. But this review is really meant for those who own other L glass pieces and are looking into adding this one to their collection.
The good:
L glass tends to mean some heavy-weight glass, however this lens is surprisingly light and small. In fact, it is the smallest/lightest L zoom Canon makes. You find yourself more likely to take it to places where there may not be much of a projected photo opportunity or where there is a higher risk in damaged gear due to its unobtrusive size. It really is one of those few L lenses that you can casually walk around with and not garner much for attention.
As with all L-glass, this ones very solidly constructed. It has a simplicity of design that minimizes risk to moving parts from shock. It is well-balanced and just feels like a tight glass package.
The lens performs very well in color and contrast. Natural saturation is excellent, easily on par with the L expectation. The color and saturation of this lens sits somewhere between the 70-200mm f/2.8 IS and the 24-70mm f/2.8.
I initially thought that the zoom range would be constraining (a mere 23mm of range?), but in reality the lens is fairly versatile. This especially true on a 1.6 FOVCF body (20D, 30D, 350D, 400D, etc), where the range is more like that of a normal zoom, at the cost of the super-wide advantage. The lens handles pretty much all composition tasks except those of a telephoto or 1.0x macro. You won't be disappointed in the zoom versatility.
Price. This like, what, the second cheapest L lens available. For those whom are very accustomed to purchasing/collecting L lenses, anything under a thousand dollars really is considered on the cheap side. If this is your first L purchase, this lens or the 70-200mm F/4L are your places to start.
Flare. There's practically none.
Cons: (there's only one, but its a biggie)
Sharpness. This is by far my biggest qualm, and what makes me frown a little at this lens for its L designation. It's nowhere near that of other lenses. One of the biggest uses for this lens is landscape photography, where objects appear very distant and sharpness becomes crucial. 24mm at f/4 on this lens is easily less sharp than 24mm at f/2.8 (!) on the 24-70 f/2.8L. And as a little investigation will reveal, this probelm is also somewhat appearant on the 16-35mm f/2.8L (although it seems less pronounced). 100% crop comparisons of this lens to other lenses such as the 180mm f/3.5L is simply a joke.
Other:
This lens utilizes slight movement of the front element, so it is advised by pretty much everyone that a UV filter be purchased (77mm filter size). I add to that by saying: buy only the Multi-coated from B+W or Hoya if you're shooting digital. Yes, they're usually somewhere around eighty bucks, but spending forty on something that will bring you ghosting/contrast woes is not worth it.
The hood of this lens is hilarious. It's almost five inches wide and maybe an inch and a half tall. I simply don't use it (I can't geometrically see how it helps. I think it may be something of a feel-good-hood if you're not consiencious about flare.) The lens is less conspicuous without it and I really don't have a flare problem.
Conclusion
I'm really not satisfied with the sharpness issue. It seems at least somewhat appearant on almost all Canon's lenses below 35mm. (Except for the 24-70 and 24-105, which is odd). I think they're still working out their wide-angle formula. Appearantly, the new 17-55mm f/2.8 is supposed to be sharper than both the 17-40 and 16-35, so they are probably on the right track of improving the issue.
In the end, if you've never used L glass and are considering this one, buy it. You will be very pleased, I assure you. But if you own a good deal of L glass, you may want to hold off from this one and wait for Canon to improve their optics. You may find yourself like me, using other L pieces and only using this one when I absolutely have to.
This review is written from the viewpoint of someone whom has used many L-class lenses, and as such will be a little harder on this piece of glass. If you've never used a Canon L lens and you purchase this one, I guarantee you'll be quite pleased with your purchase. But this review is really meant for those who own other L glass pieces and are looking into adding this one to their collection.
The good:
L glass tends to mean some heavy-weight glass, however this lens is surprisingly light and small. In fact, it is the smallest/lightest L zoom Canon makes. You find yourself more likely to take it to places where there may not be much of a projected photo opportunity or where there is a higher risk in damaged gear due to its unobtrusive size. It really is one of those few L lenses that you can casually walk around with and not garner much for attention.
As with all L-glass, this ones very solidly constructed. It has a simplicity of design that minimizes risk to moving parts from shock. It is well-balanced and just feels like a tight glass package.
The lens performs very well in color and contrast. Natural saturation is excellent, easily on par with the L expectation. The color and saturation of this lens sits somewhere between the 70-200mm f/2.8 IS and the 24-70mm f/2.8.
I initially thought that the zoom range would be constraining (a mere 23mm of range?), but in reality the lens is fairly versatile. This especially true on a 1.6 FOVCF body (20D, 30D, 350D, 400D, etc), where the range is more like that of a normal zoom, at the cost of the super-wide advantage. The lens handles pretty much all composition tasks except those of a telephoto or 1.0x macro. You won't be disappointed in the zoom versatility.
Price. This like, what, the second cheapest L lens available. For those whom are very accustomed to purchasing/collecting L lenses, anything under a thousand dollars really is considered on the cheap side. If this is your first L purchase, this lens or the 70-200mm F/4L are your places to start.
Flare. There's practically none.
Cons: (there's only one, but its a biggie)
Sharpness. This is by far my biggest qualm, and what makes me frown a little at this lens for its L designation. It's nowhere near that of other lenses. One of the biggest uses for this lens is landscape photography, where objects appear very distant and sharpness becomes crucial. 24mm at f/4 on this lens is easily less sharp than 24mm at f/2.8 (!) on the 24-70 f/2.8L. And as a little investigation will reveal, this probelm is also somewhat appearant on the 16-35mm f/2.8L (although it seems less pronounced). 100% crop comparisons of this lens to other lenses such as the 180mm f/3.5L is simply a joke.
Other:
This lens utilizes slight movement of the front element, so it is advised by pretty much everyone that a UV filter be purchased (77mm filter size). I add to that by saying: buy only the Multi-coated from B+W or Hoya if you're shooting digital. Yes, they're usually somewhere around eighty bucks, but spending forty on something that will bring you ghosting/contrast woes is not worth it.
The hood of this lens is hilarious. It's almost five inches wide and maybe an inch and a half tall. I simply don't use it (I can't geometrically see how it helps. I think it may be something of a feel-good-hood if you're not consiencious about flare.) The lens is less conspicuous without it and I really don't have a flare problem.
Conclusion
I'm really not satisfied with the sharpness issue. It seems at least somewhat appearant on almost all Canon's lenses below 35mm. (Except for the 24-70 and 24-105, which is odd). I think they're still working out their wide-angle formula. Appearantly, the new 17-55mm f/2.8 is supposed to be sharper than both the 17-40 and 16-35, so they are probably on the right track of improving the issue.
In the end, if you've never used L glass and are considering this one, buy it. You will be very pleased, I assure you. But if you own a good deal of L glass, you may want to hold off from this one and wait for Canon to improve their optics. You may find yourself like me, using other L pieces and only using this one when I absolutely have to.
Most Recent Customer Reviews
5.0 out of 5 stars
Great landscape lens
I was a little worried about not being a f2.8 but for landscape but I use a Tripod 98 % of the time anyway. Read more
Published 1 day ago by SWCal
5.0 out of 5 stars
Amazing
It is my first ultra wide angle zoom lens. I took some photos for test. It worked really great beyond my expectation.
Published 6 days ago by zhouzhanxin
5.0 out of 5 stars
ok
very good product to use and highly recommended. useful item if you are interested in buying it. also lasting product.
Published 9 days ago by Jose L. Herrera
5.0 out of 5 stars
Excellent Lens
This is an excellent lens for the price, and I've used it all over the world with no issues. I would recommend this to anyone.
Published 15 days ago by Slash-5
5.0 out of 5 stars
Typical L Glass High Standards
Good quality glass and one of the least expensive L lenses you can buy. This lens is a good entry point into the world of Canon L Lenses. They cost more for a good reason.
Published 1 month ago by Luc
4.0 out of 5 stars
First day with the new lens
I received the lens earlier today so I haven't had time to do extensive testing yet, but I'm pretty happy with it so far. Read more
Published 1 month ago by Loren Holzem
5.0 out of 5 stars
Excellent lens.
This lens has excellent qualities, pictures are sharp perfect and the zoom range is ideal especially for interior shoots as always the L type lens delivered.
Published 1 month ago by Carlos
5.0 out of 5 stars
Excellent lens for the price
So many people recommended the F2.8 16-35. Gladly I didn't listen and instead bought this lens for the value. Read more
Published 1 month ago by Jenny
5.0 out of 5 stars
As advertised
I needed a wide angle lens for my full frame Canon DSLR. As expected, I found it to be as advertised and I am very satisfied with it. I would recommend it.
Published 1 month ago by imkap
5.0 out of 5 stars
Completely satisfied
I couldn'wait to go out and shoot with this lens - and it's incredible! The zoom is so fast and smooth I didn't know it had moved, and the auto focus was so smooth and silent I... Read more
Published 1 month ago by John Henwood
