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

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EF 17-40mm f/4L USM Lens
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Bullet Points Canon EF 17-40mm f/4L USM Lens
Each of several items in a list, preceded by a bullet symbol for emphasis. For easy access to this data, refer to the "BulletPoints" tag in XML or JSON.
:
  • - Capture striking architecture and expansive landscapes with this ultra-wide-angle L-series lens
  • - Shoot hand-held and in low light conditions with a fixed aperture of f/4
  • - Get closer to your subjects with 0.28 m focusing distance through the entire zoom range
  • - Ensure accurate colour balance and enhance contrast along with reduced ghosting and flare with Super Spectra coating
  • - Produce sharp, high-contrast images with Super UD (ultra-low dispersion) elements to suppress chromatic aberrations
  • - Be prepared for split-second moments with a fast, responsive Auto Focus with Ultra-Sonic Motor (USM)
  • - Use specialised filters, such as polarisers and graduates with ease thanks to the non-rotating lens
  • - Compatible with all DSLR cameras including full frame and EOS M mirrorless with an EF-EOS M Mount adapter
Long product name Canon EF 17-40mm f/4L USM Lens :
The long product name of Canon EF 17-40mm f/4L USM Lens. For easy access to this data, refer to the "ProductDescription" block and the "ShortDesc" tag in XML or the "Description" block and the "LongProductName" tag in JSON.

EF 17-40mm f/4L USM Lens
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Canon EF 17-40mm f/4L USM Lens:
The official description of Canon EF 17-40mm f/4L USM Lens as supplied by the manufacturer. For easy access to this data, refer to the "ProductDescription" block and the "LongDesc" tag in XML or the "Description" block and the "LongDesc" tag in JSON.

The EF 17-40mm f/4L USM Lens is an ultra-wide-angle lens producing stunning clarity in a range of focal lengths. Its compact, lightweight body makes it an ideal travel companion - suited to interiors, architecture and landscapes, fitting more in the frame without the need to step back. Produce consistent exposures with the large f/4 aperture over the 17-40 mm zoom range and create softer background blur with a 7-blade circular aperture diaphragm. Part of the Canon professional L-series flagship range, its designed for robust handling and resistant to dust and moisture.

Short summary description Canon EF 17-40mm f/4L USM Lens:
This short summary of the Canon EF 17-40mm f/4L USM Lens data-sheet is auto-generated and uses the product title and the first six key specs.

Canon EF 17-40mm f/4L USM Lens, Wide zoom lens, 12/9, 17 - 40 mm, Canon EF, Auto focus

Long summary description Canon EF 17-40mm f/4L USM Lens:
This is an auto-generated long summary of Canon EF 17-40mm f/4L USM Lens based on the first three specs of the first five spec groups.

Canon EF 17-40mm f/4L USM Lens. Component for: SLR, Lens structure (elements/groups): 12/9, Lens type: Wide zoom lens. AF actuator: USM. Product colour: Black. Diameter: 8.35 cm, Filter size: 7.7 cm, Length: 96.8 mm. Magnification: 0.24x

Lens system
Component for *
SLR
Lens type *
Wide zoom lens
Lens structure (elements/groups) *
12/9
Lens viewing angle, diagonal
104 - 57.5°
Focal length range
17 - 40 mm
Minimum aperture number *
4
Number of diaphragm blades
7
Closest focusing distance *
0.28 m
Maximum aperture number *
22
Lens mount interface *
Canon EF
Performance
Auto focus
Yes
Manual focus
Yes
AF actuator
USM
Design
Product colour
Black
Weight & dimensions
Length
96.8 mm
Weight
500 g
Diameter *
8.35 cm
Filter size *
7.7 cm
Other features
Magnification
0.24x
Source Testseek summary Average rating
Reviews
Updated:
2011-08-14 05:29:47
Uk has collected 25 expert reviews for Canon EF 17-40mm f/4L USM Lens and the average expert rating is 80 of 100. The average score reflects the expert community’s view on this product. Click below and use Uk to see all ratings, product awards and conclusions.
80%
Source Review comments Score
itreviews.com
Updated:
2013-12-15 01:34:18
The Canon EF 17-40mm f/4L USM ($839.99 direct) is an ultra-wide to normal zoom lens that is compatible with Canon EOS SLR cameras. When used on a full-frame body, the lens provides an extremely wide 17mm field of view on the wide end with a 2.4x zoom fact...
Bottom line The Canon EF 17-40mm f/4L USM lens is an inexpensive alternative to the 16-35mm f/2.8, but its edges are muddy at its widest angle...
60%
brighthub.com
Updated:
2011-08-14 05:29:41
This article reviews Canons EF 17-40mm f/4L USM wide angle zoom lens, covering its features, performance, image quality and the value for money aspects. Features and Specifications(Image from Canon Website)The Canon EF 17-40mm f/4L USM lens is known...
Bottom line This article reviews Canons EF 17-40mm f/4L USM wide angle zoom lens, covering its features, performance, image quality and the value for money aspects. Features and Specifications(Image from Canon Website)The Canon EF 17-40mm f/4L USM lens is known...
100%
photozone.de
Updated:
2011-08-14 05:29:42
The Canon EF 17-40mm f/4 USM L is one of the most popular L class lenses thanks to its relatively affordable price and its dual purpose scope - it can serve as a standard zoom lens on APS-C DSLRs and its an ultra-wide zoom lens with an attractive ran...
Bottom line Its not exactly easy to design a flawless full format lens and the Canon EF 17-40mm f/4 USM L shows its part of the struggles here. The lens is not overly fast but it has a comparatively broad range for a lens in this class and it seems as if Canon h...
0%
photo.net
Updated:
2011-08-14 05:29:43
Canon makes two high-quality wide-angle zoom lenses for full-frame cameras, the 17-40/4L reviewed here and the Canon EF 16-35mm f/2.8L USM, $1249 (review). In the digital era, the 17-40 has been overlooked to some extent. It isnt wide enough to be dra...
Bottom line It isnt lighter than the 16-35/2.8L. It isnt better quality than the 16-35/2.8L. It isnt dramatically wide on the small sensor cameras. However, if you want a high quality wide-angle zoom with a medium weight and a medium aperture, the 17-40/4L is a...
0%
cameralabs.com
Updated:
2011-08-14 05:29:43
The Canon EF 17-40mm f/4.0L was announced back in February 2003 as a lightweight ultra wide-angle zoom and has since become a bit of a classic lens for owners of Canon EOS digital and film SLRs. Its ultra-wide focal range delivers spectacular coverag...
Good Canon L build and optical quality, Fast and quiet USM focusing motor, Constant f4 aperture throughout range, Will also work on full-frame body...
Bad Shorter zoom range than kit lens, No IS (although not particularly necessary), Overkill if not considering full-frame in future, Canon EF-S 17-85mm more flexible for most...
Bottom line Canon EF 17-40mm verdict for cropped APS-C bodies The Canon EF 17-40mm may deliver spectacular ultra-wide angle coverage when fitted to a full-frame body like the EOS 5D, but offers a more normal, general-purpose range when mounted on cropped bodies l...
77%
whatdigitalcamera.com
Updated:
2011-08-14 05:29:44
Canon is the only company to make digital cameras with 35mm sized sensors. This lens can still be used on the APS-C sensor-equipped cameras, such as the EOS 400D or 30D, but there is a shift in the angle of view – expressed as a 35mm eq...
89%
Wlcastleman.com
Updated:
2011-08-14 05:29:44
Review of the Canon EF 17-40mm f/4L USM LensComparison with Canon EF 20mm f/2.8 and Sigma 20mm f/1.8 EX Canon EF 17-40mm f/4 LThis article reviews the full frame performance of the Canon EF 17-40mm f/4L lens. My intented use of the lens is for landscap...
0%
Kenrockwell.com
Updated:
2011-08-14 05:29:45
In a Nutshell: Read the rest of this review if you like, or stop here and know that I bought myself one of these after having it and a 16-35mm L on loan for a month. I prefer this 17-40mm to the twice-as-expensive and heavier 16-35L. Ill forgo the wi...
0%
cameralabs.com
Updated:
2011-08-14 05:29:46
The Canon EF 17-40mm f/4.0L was announced back in February 2003 as a lightweight ultra wide-angle zoom and has since become a bit of a classic lens for owners of Canon EOS digital and film SLRs. Its ultra-wide focal range delivers spectacular coverage...
Good Extreme wide angle coverage, Well-corrected at wider focal lengths, Fast and quiet USM focusing motor, An exotic but affordable L lens...
Bad Zoom range too limited for general purpose, Soft corners at 40mm focused at infinity, Unimpressive macro capabilities, Light fall-off at wide angle (but expected)...
Bottom line Canon EF 17-40mm verdict The EF 17-40mm f/4.0L is one of the best lenses in Canon’s range. It brings you a taste of the truly exotic with ultra-wide coverage, while boasting ‘L’ quality all at a surprisingly affordable price. Sure it ain...
83%
The-digital-picture.com
Updated:
2011-08-14 05:29:47
The Canon L Series Lenses is a high quality, moderately-priced ultra wide angle zoom lens. Although not as fast as the Canon EF 16-35mm f/2.8 L lens, the Canon EF 17-40mm f/4.0 L USM Lens is a comparable lens in terms of image quality. The biggest dif...
0%
pcmag.com
Updated:
2013-07-31 01:14:59
The Canon EF 17-40mm f/4L USM ($839.99 direct)$839.00 at Buydig.com is an ultra-wide to normal zoom lens that is compatible with Canon EOS SLR cameras. When used on a full-frame body, the lens provides an extremely wide 17mm field of view on the wide...
Good Ultra-wide field of view. Reasonable price tag. Good center sharpness.
Bad Muddy edges and corners at 17mm. Some distortion. Noticeable color fringing...
Bottom line The Canon EF 17-40mm f/4L USM lens is an inexpensive alternative to the 16-35mm f/2.8, but its edges are muddy at its widest angle...
60%
Slrgear.com
Updated:
2014-10-29 03:55:00
The Canon 17-40mm f/4 L is a high quality lens with a full-frame image circle that showed really exceptional performance on the EOS-20D we used to test it with. (The EOS-20D has a nominally APS-C size sensor, so corner sharpness and distortion will be bet...
88%
dxomark.com
Updated:
2015-08-20 01:07:03
Although overshadowed by its more glamorous sibling, as a moderately priced, highly portable ultra-wide zoom, the EF 17-40mm f/4L USM is a hugely popular model. Read on to find out how well it performs in our labs.Introduced in 2003 the EF 17-40 f/4L USM...
Bottom line Due to its more glamorous sibling this modest lens is often overlooked though it's well known for its high-performance by Canon users. As a small, light, highly portable zoom it would make a great choice for travel, landscapes and general-purpose photogra...
0%
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