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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras
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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.
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Lens Hood Part Number||EW-83E|
|Compatible Mountings||Canon EF|
|Included Components||LP1319 Lens Pouch Case , EW-83-E lens Hood.|
|Item Dimensions||3.31 x 3.31 x 3.82 inches|
|Item Display Weight||0.5 Kilograms|
|Item Weight||1.1 pounds|
|Lens Type||Zoom lens|
|Macro Focus Range||0.28 m|
|Manufacturer Warranty Description|
|Material Type||Metal barrel, Metal mount|
|Maximum Aperture Range||F4.0|
|Maximum Focal Length||40 mm|
|Maximum Format Size||35mm full frame|
|Minimum Focal Length||17 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||12|
|Number of Groups||9|
|Photo Filter Thread Size||77 mm|
|Real Angle Of View||104 Degrees|
|Shipping Weight||1.85 pounds|
|Style Name||17-40mm Lens Only|
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|Sold By||Amazon.com||Amazon.com||Amazon.com||Amazon.com||Amazon.com||Woodland Hills Camera & telescopes|
|Compatible Mountings||Canon EF||Canon EF-S||Canon EF||Canon EF-S||Canon EF||Canon EF|
|Focus Type||Ultrasonic||Stepper motor||Ring-type ultrasonic||Stepper motor||Stepper motor||Ring-type ultrasonic|
|Item Dimensions||3.31 x 3.82 x 3.31 in||2.95 x 2.83 x 2.95 in||3.27 x 4.45 x 3.27 in||2.68 x 0.91 x 2.68 in||2.72 x 1.54 x 2.72 in||3.5 x 4.41 x 3.5 in|
|Item Weight||1.1 lbs||0.53 lb||1.36 lbs||4.41 ounces||5.61 ounces||1.4 lbs|
|Lens||Zoom lens||wide-angle||Zoom lens||Prime lens||Prime lens||Zoom lens|
|Maximum Focal Length||40 millimeters||18 millimeters||35 millimeters||24 millimeters||50 millimeters||35 millimeters|
|Minimum Focal Length||17 millimeters||10 millimeters||16 millimeters||24 millimeters||50 millimeters||16 millimeters|
|Photo Filter Thread Size||77 millimeters||67 millimeters||77 millimeters||52 millimeters||49 millimeters||82 millimeters|
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.
Top customer reviews
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I haven't seen any reviews that have mentioned how the close focus ability impacts the perception of wide angle. Anyway, I'm very pleased with the purchase. Only thing that could be better would be an all-metal body on the lens. It feels a bit less luxurious due to the plastic barrel.
Just my 2 cents. **Also** Sounds crazy...but true...somehow my copy of this lens is close-focusing at 5 or 6 inches rather than 11. Not sure if this is normal on an APS-C camera or not, but I'm a little mystified as to how this is happening!
At this price, this lens is worth having if you need this range, but don't be afraid to consider other options if the image quality is the same at a lower price. And if you have money to burn, definitely look at the more expensive L lenses.
All in all, my favorite lens on my 5DmkII. Great for landscapes at 17mm and has enough bokeh for portraits at 40mm f4.
With that said, this lens is sharp but not the sharpest of the Canon L lens family. The distortion/vignetting is pretty noticeable as well. However, at the price level, this is an excellent lens. Though it doesn't take photos like a prime, one has to be realistic about what can be expected out of a lens. A zoom lens will never be as sharp as a prime. If you a buying a ultra-wide angle zoom, you should accept this as reality. I am happy with my purchase and continue to shoot with it when I travel (along with my 24-70 f2.8 ii). It's a worthy addition to the bag of any photographer.
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