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Product Details
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: $678.99 from BestPricePhoto.com
Power Score: 4.5 | 146 Reviews
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Product Reviews (14)
Great Lens! How did I live without it
This lens is exactly what I need for doing interior house shots. I can get a whole room in one shot! I was also amazed when I used it at a garden and it takes great wide angle shots. I will use it more for landscapes and a carry around lens when traveling
By Jennifer on Adorama - Sep 10, 2012
Once I bought this lens, it always...
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.
By yinkai - Sep 24, 2004
Pefect for Landscapes
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...
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By ctesti - Aug 17, 2005
I've been using the DRebel for...
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...
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By ari_c - Dec 22, 2004
This lens is well constructed. It...
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.
By arthurlu - Nov 8, 2004