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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras

4.4 out of 5 stars 427 customer reviews
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  • 17-40mm ultra-wide-angle zoom lens with f/4 maximum aperture for Canon SLR cameras.Diagonal angle of view 104° - 57° 30'
  • 3 aspherical lens elements and super UD glass element create superior optics in all conditions, Closest focusing distance : 0.9 feet
  • Powerful ring-type ultra-sonic monitor (USM) produces fast and silent autofocusing, Focuses as close as 11 inches; supports screw-in 77mm filters or up to 3 gel filters
  • Suitable for Wedding/Nature Photography, Weather-resistant construction; measures 3.3 inches in diameter; 1-year warranty
  • Purchase this product between May 1, 2016 and July 30, 2016 and get 13 months of free damage protection from Canon. The product must be registered within 30 days of the purchase date to be eligible.
21 new from $749.00 51 used from $450.00 3 refurbished from $545.00

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Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 4 out of 5 stars (427) 4 out of 5 stars (1936) 5 out of 5 stars (146) 4 out of 5 stars (717) 4 out of 5 stars (29) 4 out of 5 stars (208)
Price $749.00 $125.00 $999.00 $279.00 $1,699.99 $799.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com digideals4less Top rated seller Abe's Electronics Center
Color black No Black Black Black
Compatible Mountings Canon EF Canon EF Canon EF Canon EF-S Canon EF
Focus Type Ultrasonic Stepper motor Ring-type ultrasonic Stepper motor Ring-type ultrasonic manual_only
Item Dimensions 3.31 x 3.82 x 3.31 in 2.72 x 1.54 x 2.72 in 3.27 x 4.45 x 3.27 in 2.95 x 2.83 x 2.95 in 3.31 x 4.06 x 3.31 in 2 x 6 x 2 in
Item Weight 1.1 lbs 5.6 ounces 1.36 lbs 0.53 lb 1.32 lbs 2.2 lbs
Lens Zoom lens Prime lens Zoom lens wide-angle Zoom lens zoom
Maximum Aperture 4 f/5.6 f/4 f/4.5 2.8 4
Maximum Focal Length 40 millimeters 50 millimeters 35 millimeters 18 millimeters 35 millimeters 105 millimeters
Minimum Aperture 22 22 22 29 22 4
Minimum Focal Length 17 millimeters 50 millimeters 16 millimeters 10 millimeters 16 millimeters 24 millimeters
Photo Filter Thread Size 77 millimeters 49 millimeters 77 millimeters 67 millimeters 77 millimeters 77 millimeters

Product description

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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
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 (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches (0.28m), and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f/4 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Finally, it offers weather-resistant construction similar to other high-end L-series lenses.

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.


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