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Canon EF 17-40mm f/4.0L USM

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  1. User ratingsUser ratingsratings of product added by Productz users
  2. Expert ratingsExpert ratingsexperts ratings from editorial reviews
  3. Consumer ratingsConsumer ratingsratings from the biggest online stores worldwide
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  4. Average
4.0
based on all reviews
User ratings:
10
3.9 out of 5
10 user ratings
5 stars
20 %
4 stars
50 %
3 stars
30 %
2 stars
0 %
1 stars
0 %
Consumer ratings:
4.4 / 5
Editorial reviews:
9
  1. See more
9 editorial reviews
OpticalLimits - Lens reviews and beyond!Read more
OpticalLimits - Lens reviews and beyond!Read more
OpticalLimits - Lens reviews and beyond!Read more
Read editorial reviews

Pros

  • Focus and zoom rings are nicely sized
  • nicely positioned and turn smoothly
  • very fast

Cons

  • the corners are not as sharp as the center
  • 17-40 L does not carry a weight penalty for this quality
  • slim circular polarizing filter

Key specs

  • Zoom
  • 12
  • Internal
  • yes
  • Full-frame (35mm)
  • 17, 40 mm
  • no
  • Normal, Telephoto, Wide angle

Canon EF 17-40mm f/4.0L USM - Pros & Cons

Canon EF 17-40mm f/4.0L USM

Pros

  • Focus and zoom rings are nicely sized
  • nicely positioned and turn smoothly
  • very fast
  • quietly and accurately
  • 6 brings along a nice improvement in sharpness
  • Good full-frame compatibility and performance
  • Colors and contrast are very good
  • wobbling whatsoever and smooth controls - almost perfect
  • Focusing is very quick
  • excellent build
  • fast focusing and light weight

Cons

  • the corners are not as sharp as the center
  • 17-40 L does not carry a weight penalty for this quality
  • slim circular polarizing filter
  • It also makes storage inefficient
  • barrel distortion in the full-frame 17mm ISO
  • The transition from sharp to soft is very sudden
  • curvature increases towards the corners in a non-uniform fashion
  • hood is huge and the petals are round at the front
  • but no full-time manual focus facility
  • say - the front element does not rotate during focusing or zooming operations
  • sharpness drops somewhat at the maximum aperture

Canon - Video Reviews (2)

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Canon EF 17-40mm f/4.0L USM - Full Specifications

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General
Lens type
  • Normal
  • Telephoto
  • Wide angle
Lens mountCanon EF
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Aperture
Aperture max4
Aperture min22
Aperture ringno
Number of diaphragm blades7
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Optics
ConstructionZoom
Elements12
Groups9
Special elements / coatingsSuper Spectra coating
Power zoomno
Zoom methodInternal
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Dimensions
Weight17.64 oz
Diameter3.31 in
Length3.82 in
Filter size3.29 in
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Image properties
Max Format size
Full-frame
Focal length17 - 40
Maximum magnification0.24 x
Image stabilisationno
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Focus
Focus methodInternal
Autofocusyes
Autofocus motor typeUltrasonic
Full-time Manual focusingyes
Closest focusing distance0.28
Distance scaleyes
Depth of field (DoF) scaleyes
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Design
Colour of productBlack
Body materialsMetal
Zoom lockno
Tripod collarno
Hood suppliedyes
Filter threadyes
Sealingyes

Canon EF 17-40mm f/4.0L USM - Q&A

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Canon EF 17-40mm f/4.0L USM Canon - Editorial Reviews (9)

3.8
Based on 9 reviews
  • 5
  • 4
  • 3
  • 2
  • 1
Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4 USM L - Retest @ 15mp
www.photozone.de logo
www.photozone.de
Canon EF 17-40mm f/4 USM L - Retest @ 15mp

OpticalLimits - Lens reviews and beyond!

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4 USM L - Review / Test Report
www.photozone.de logo
www.photozone.de
Canon EF 17-40mm f/4 USM L - Review / Test Report

OpticalLimits - Lens reviews and beyond!

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4 USM L (full format) - Review / Test Report
www.photozone.de logo
www.photozone.de
Canon EF 17-40mm f/4 USM L (full format) - Review / Test Report

OpticalLimits - Lens reviews and beyond!

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4L USM Review
Imaging Resource logo
Imaging Resource
Published: 27.09.2005
Canon EF 17-40mm f/4L USM Review

Looking for a Canon 17-40mm lens review? Read on to find out what we uncovered in our objective optical lab tests.

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4L USM lens review: Popular high-performance option
DXOMARK logo
DXOMARK
Published: 13.01.2014
Canon EF 17-40mm f/4L USM lens review: Popular high-performance option

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.

Canon EF 17-40mm f/4.0L USM Lifetime Review of the Canon EF 17-40mm f/4L USM Lens
Fstoppers logo
Fstoppers
Published: 10.06.2019
Lifetime Review of the Canon EF 17-40mm f/4L USM Lens

The Canon EF 17-40mm f/4L USM Lens is a staple for most photographers. I purchased mine about 10 years ago, and I am about to retire it. I am going to start off with the reason that I am retiring the lens first, rather than why I purchased it. I am certainly not going to be upgrading the lens. I simply don’t need it anymore, so although this is a lifetime review, this is actually the first time that I am retiring a lens rather than upgrading. My work simply no longer requires this lens as of this weekend.

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4L USM Review
PCMAG logo
PCMAG
Published: 19.02.2013
Canon EF 17-40mm f/4L USM Review
3.0

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.

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4L USM Lens
Photo Review logo
Photo Review
Published: 17.02.2012
Canon EF 17-40mm f/4L USM Lens

The EF 17-40mm f/4L USM lens is a member of a suite of Canon zoom lenses that retain a constant f4 maximum aperture throughout the zoom range. Designed for use on 35mm SLR cameras, this ultra-wide zoom is ideal for capturing dramatic landscape shots and taking portraits of large groups of people. It will also prove useful for shooting in cramped interiors. [ia]

Canon EF 17-40mm f/4.0L USM Canon EF 17-40mm f/4.0 L USM Review
Trusted Reviews logo
Trusted Reviews
Published: 07.10.2008
Canon EF 17-40mm f/4.0 L USM Review
4.5

What Digital Camera lens test review of the Canon 17-40mm f/4.0 L USM

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