Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens
Manufacturer: Canon Part number: 8806A002
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- User reviews
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- Description:
- 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 analog 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. ... Read more
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*Total price for the Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens are estimated and may vary slightly based on exact tax, shipping, manufacturer rebate or any sale/promotion on the merchant site.
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Write Review Showing opinion 1 to 3 out of 3
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10 stars
Awesome walk around lense
by HEVeng on February 17, 2006
Pros: Size, Quick AF, Weight, Smooth zoom/focus rings
Cons: Barrel Distortion
Summary: This was my first "L" lense. Bought it for the 2005 Detroit Auto Show and now I have taken about 30,000 shots with it on a 300D and a ...
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Summary: This was my first "L" lense. Bought it for the 2005 Detroit Auto Show and now I have taken about 30,000 shots with it on a 300D and a 20D. Works prefect in every situation, but sometimes the AF is a little slow in low light. The AF assist beam from my 580EX fixes this problem. Images are extremely sharp, but barrel distortion is evident on some 17mm city shots with lofs of horizontal lines. Paid $679 and its worth every penny.
Its a great pair with my 70-200 f/2.8L.
For weddings I will start doing in 2006, I may look into the 16-35 f/2.8L to gain a little low light indoors speed.
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4 out of 4 users found this user opinion helpful.
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3 stars
Your mileage may vary
by Robert Drake on January 5, 2007
Pros: Build quality
Cons: Lack of quality control
Summary: Seems to be many who are having focusing and softness issues with this lens, I among them. Send it to be calibrated at the Canon facility in Calgary. After over ...
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Summary: Seems to be many who are having focusing and softness issues with this lens, I among them. Send it to be calibrated at the Canon facility in Calgary. After over a month of waiting, and then weeks of unreturned calls, I faxed the President of Canon Canada and got a reply in minutes. Said they'd accelerate my repair (this, after one month of waiting), then a week later, emailed to tell me they'd lost the lens. They did send my a cheque for less than replacement value in the end.
OTOH, many have gotten sharp, trouble free lenses, hoping you're one, because you don't want to ever send a lens Canon repair in Canada.
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3 out of 3 users found this user opinion helpful.
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9 stars
Outstanding Lens
by Weebs86 on October 27, 2009
Pros: Sharpness (at f/8 or above)
Excellent Build Quality
Non-rotating front lens element (Makes using polarizing filters MUCH easier)
Smooooooth Focus and Zoom rings
Cons: A tad bit expensive, but worth it.
Kind of funky looking lens hood.
f/4 means low light conditions require flash
Summary: This lens was my first "L" lens, and I made a great choice. With aperture set to f/8 or above, you can capture some pretty incredible shots. I recently ...
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Summary: This lens was my first "L" lens, and I made a great choice. With aperture set to f/8 or above, you can capture some pretty incredible shots. I recently shot some pictures of pumpkins and they practically pop right out of the picture. (I also did notice a surprising number of other folks using DSLRs, but none of em had L lenses, and I caught a few glances of people checking this lens out).
I'll be honest though. When I first got this lens, I was a little dissapointed because it didn't really seem to be that much better than the kit lens that came with my Digital Rebel. After using it for a few months now, though, I've come to realize just how wonderful this lens is, and it rarely leaves my camera. The only real con is that f/4 means you'll need a high ISO setting or a flash indoors. This isn't a problem so much with higher end cameras with better ISO processing, but with consumer end DSLRs it may be a bit problematic. Although odds are, if you're looking at this lens, you're probably not using a cheap camera to begin with!
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Showing opinion 1 to 3 out of 3
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show Specifications
- Manufacturer: Canon
- Part number: 8806A002
- Description: 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 analog 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.
Miscellaneous
- Included Accessories Dust cap,
Lens cap
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