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Canon 17-40mm f/4.0L EF USM (8806a007)

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Canon 17-40mm f/4.0L EF USM
Lens type
wide angle
DxOMark rating
26
System
Canon
Mount
Canon EF
Focal length
17 - 40 mm
Aperture value
f/4.0
Viewing angles
104°-57°30'
Min. diaphragm
22
Minimum focus distance
0.28 m
Sensor size
full frame/APS-C
Autofocus drive
ultrasonic drive motor
Internal focus
Design (elements/groups)
12 elements in 9 groups
Number of diaphragm blades
7
Filter diameter
77 mm
Dimensions (diameter/length)
83.5x96.8 mm
Weight
500 g
Added to E-Catalog
november 2005
P/N
8806a007

. Wide-angle lens for Canon systems with EF mounts and full frame sensors. It has a constant f / 4 aperture over the entire range of focal lengths, which is 17-40 mm. Autofocus is carried out by an ultrasonic motor. Aperture — 7-blade, with a minimum value of 22.

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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for SLR Cameras 8806A

17-40mm ultra-wide-angle zoom lens with f/4 maximum aperture for Canon SLR cameras.Diagonal angle of view 104 - 57 30' 3 asp... moreherical 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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$599.00

Canon 8806A002 SLR Lenses EF 17-40mm f/4L USM Ultra-Wide Zoom Lens Black

EF Mount L-Series Lens Aperture Range: f/4-22 Three Aspherical Elements, One Super UD Ultrasonic Autofocus Motor Manual Focus... moreOverride Water and Dust Resistant Internal Zooming and Focusing
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$450.13

Canon EF 17-40mm f/4L USM Lens with Free Basic Accessory Bundle (PC) 8806A

When capturing stunning landscapes or expansive architectural structures, the EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens... moreis the perfect tool for both film and digital SLR cameras. This lens, part of Canon's esteemed L-series, boasts superior optics, thanks to the inclusion of three aspherical lens elements and a Super UD (Ultra-low Dispersion) glass element. Designed with the modern photographer in mind, the lens features optical coatings optimized for digital cameras, ensuring high-quality images with minimal ghosting and flare. The lens offers a close focusing distance of just 11 inches (0.28m), making it ideal for capturing detailed close-ups. The EF 17-40mm f/4L USM lens offers both
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$799.00

Canon EF 17-40mm f/4L USM Lens 8806A002

An affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by... morethe 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 Ultra-wide
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$599.00

Canon EF 17-40mm f/4L USM Lens (8806A002) + Filter + BackPack + 64GB Card

Bundle Items Include: 1 x Canon EF 17-40mm f/4L USM Lens, 1 x 77mm 3 Piece Filter Kit, 1 x Pro Sling Backpack, 1 x San Disk 6... more4GB Ultra SDXC Memory Card, 1 x Memory Card Reader, 1 x 12 inch Flexible Tripod, 1 x Memory Card Wallet, 1 x Lens Cap Keeper, 1 x Cleaning Kit, 1 x Hand Strap. Spanning a versatile wide-angle range, the EF 17-40mm f/4L USM Lens is a Canon L-series zoom featuring a constant f/4 maximum aperture along with a sophisticated optical design and durable construction. One Super UD
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$549.95
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Description of the lens Canon EF 17-40mm f/4 L USM:

The EF 17-40mm f/4 L USM is a high quality ultra wide angle zoom lens. The model has a wider zoom range and a constant maximum aperture of f/4, and its autofocus speed is on par with the best lens in its class, the EF 16-35mm f/2.8L USM.

The 17-40mm zoom range provides versatility and greater creative freedom for film camera users. This range of focal lengths will also be of great benefit to digital camera users. When used with an APS-C size image sensor on a Canon EOS 10D or EOS D60, it is equivalent to the 28-70mm range on a 135 standard format camera.

Minimum glare, maximum focus

To ensure a distortion-free image, the EF 17-40mm f/4 L USM lens uses three aspherical elements of two different types, and ED glass prevents chromatic aberration, which reduces the sharpness of the edges of images. In addition, the lens coating reduces ghosting and glare caused by internal reflections. By increasing the power of the focus control group, the minimum focus distance at all focal lengths is 0.28m.

Canon's Electromagnetic Diaphragm provides a more natural look to an out-of-focus image with a circular aperture that smoothes out tonal transitions. And the extra aperture reduces the chance of flare and improves overall image contrast.

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