

f/4 - MPN: 8806A002 See Product Details
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Description
A new and affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by the use of three Aspherical lens elements, in addition to a Super UD glass element. Optical coatings are optimized for use with digital cameras. It offers weather-resistant construction similar to other high-end L-series lenses.
Quick Glance
Camera Mount: Canon EOS Cameras
Lens Type: Ultra Wide Angle Zoom Lens
Max Focal Length: 40 mm
Max Aperture: f/ 4 (Wide)
Summary
Product Title: Canon EF 17-40mm f/4L USM Ultra Wide Zoom Lens
Manufacturer: Canon
Lowest Price: $749.00
Power Score: 4.4 | 19 Reviews
Usage Information
Compatible Camera Mount: Canon EOS Cameras
Lens Type: Ultra Wide Angle Zoom Lens
Optics
Min Focal Length: 17 mm
Max Focal Length: 40 mm
Max Aperture: f/ 4 (Wide)
Min Focus Distance: 11 in
Filter Size Supported: 77 mm
Other Features
Included Components: Lens Hood
Physical Specifications
Diameter: 3.3 in
Length: 3.8 in
Weight: 1.1 lbs
Warranty
Warranty Information: 1 Year Limited Warranty
More Info
URL: Manufacturer Link
Additional Specifications
Motorized Lens: Yes
Strengths: Quality, very sharp
Weakness: price
I used to have a 28-135mm and I replaced it with a set of 3 lenses: 70-200mm IS L, 50mm f1.4, and this wonderfull wide angle lens. I'll take it anytime I need a wide angle for landscape. The lense is pefectly sealed like any other L lens and during my trip to Grand Canyon and espcially Antelope Canyon no sand or dust found their way in. I also took it to my Mt Whitney hiking trip and it produced...
Strengths: Rapid, quiet focusing. Clear, sharp images
Weakness: None
This is one of the most affordable Canon L lens, and it's generally a good buy for a wide angle lens, especially for the digital SLR owners with the 1.6x factor. The lens produces sharp clear images, and fabulous colours. It is a good "walk-around lens" for travel photography. The construction and build is nice, unlike some of the cheaper plasticky lens bodies...
Strengths: Sharp images. Solid construction. Constant maximum aperture (F4.0) through zoom range.
Weakness: Not found so far.
This lens is well constructed. It feels solid in hand. Pictures are sharp. Focusing is fast. Color and contrast are superb. Excellent choice for Canon digital SLRs with 1.6x sensor (10D, 20D, etc). I had some pretty nice enlargements coming out of it.
Strengths: Extremely quiet and fast focus due to it's special USM design. Internal zoom and anti dust design make it function under nearly all environment. Super UD glass guarantees the best image clarity.
Weakness: I can't find any. Somebody said the lens is not fast enough (F4 L). But how frequently do I need F2.8?
Once I bought this lens, it always stays on my 10D and 20D. The best deal for digi cameras with 1.6 factor. From any angle, this lens is worth buying.
Strengths: Extremly sharp images, very fast autofocus
Weakness: none
I've been using the DRebel for over a year with a Canon 28-135IS. I was needing a lens with a wider angel and picked up this lens due to its great reviews. I was not disappointed. The image quality is just stunning and with the 1.6 crop factor of the DRebel results in a very usable wide angle range. The autofocus of this lens is extremly fast. My 28-135 has been replaced by this as my everyday...
Strengths: Excellent build quality, silent and fast focus, not much lens flare, fairly sharp at f/4 and very sharp at smaller apertures like f/8, good walkaround lens on a 1.6 crop dSLR like the 350D and 20D.
I'm very satisfied with this lens on my Canon Rebel XT (350D). On a 1.6 crop digital SLR like the 350D, the 17-40 f/4L is no longer a super zoom like it is on full frame 35mm film cameras and the much more expensive digital SLRs. Instead, it's a very usable 27-64 mm zoom. I find that I use this lens for a wide variety of shots which includes landscapes, architecture, portraits, etc. It really is...
Strengths: sharp image
Weakness: price??? Lens hood is very loose. I'm afraid it will fall off someday.
Very sharp image. Light weight compared to 17-35mm 2.8 version. Only half of the price to 2.8 version. Probably one of the most cost-effective L series lens. But the price is a little bit higher than 70-200 f4.
Strengths: Excellent color, contrast, AF speed, build quality. Good sharpness.
Weakness: Not as sharp wide open, Barrel distortion at 17mm, slight pincushion distortion at 40mm
I have been using this lens for almost 3 months, the lens is absolutely best wide angle lens I have ever owned. It has excellent color, contrast, AF speed, build quality. Sharpness is a bit soft wide open especially in corner, but it improves significantly from f/5.6 to f/11. This lens is Canon L series lens, as other L lens, you will get supplied hood and carrying case in the package and also...
Strengths: light weight , good zoom
Weakness: none
This lens is Canon L series lens, as other L lens, you will get supplied hood and carrying case in the package and also the red stripe on the lens barrel..Its light weight and the zoom quality is good..worth for money
The Canon EF-S 17-40mm f/4L USM is an ultra wide-angle zoom lens built for both film and digital SLRs. This is built to be a more affordable alternative to higher grade lenses like the Canon EF-S 16-35mm f/2.8L II USM. Three Aspherical lens elements and a Super Ultra-low Dispersion glass element combine to provide high quality images, and a optical coatings have been applied to aid when the lens...
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Bestcovery experts have rated the Canon 17-40mm EF USM Lens as a best pick for the Best Ultra Wide Angle Zoom Lens for Canon. This product has also been rated as a best pick for the Best Canon Wide-angle Lens. Bestcovery's experts recommend the best products and services for a particular need based on extensive research and evaluations. Click below to see Bestcovery's full review of this product.
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Testseek.com has collected 17 expert reviews for Canon EF 17-40mm f/4.0L USM and the average expert rating is 83 of 100. The average score reflects the expert community’s view on this product. Click below and use Testseek.com to see all ratings, product awards and conclusions.
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The EF 17-40mm f/4.0L is one of the best lenses in Canon’s range. It brings you a taste of the truly exotic with ultra-wide coverage, while boasting ‘L’ quality all at a surprisingly affordable price. Sure it ain’t exactly cheap, but it’s considerably more affordable than the EF 24-105mm f/4.0L and almost half the price of the EF 16-35mm f/2.8L. On the downside, our samples were quite...
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Canon 17-40mm F4 L
Strengths: Light weight, Very sharp, Amazing colors, Excellent build quality
Weakness: For the price, none
I would consider this is a "must-have" lens for Canon digital camera owners, especially good for 300D/350D/10D/20D. 17-40mm turns out to be around 27-64mm on a 1.6X body, which makes it a very nice workaround lens. The lens is very sharp. Autofocus is extremely fast and quiet. Colors are just amazing on this lens. It has a warm tone, which I find very pleasant. Typical L glass build quality -...
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