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Canon EF 17-40 mm f/4.0L USM

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Specifications:
Manufacturer Canon
Model EF 17-40 mm f/4.0L USM
Lens style Wide angle zoom
Focal length 17 - 40 mm
Maximum aperture f/4
Angle of view 104 - 57.3 o
Closest focusing distance 0.28 m
Maximum magnification 1:4.1
Minimum aperture 22
Number of diaphragm blades 7
Auto focus type USM
Lens Construction 12 elements / 9 groups
Filter diameter 77 mm
Macro No
Available mounts Canon EF
Dimensions 83.5 x 96.8 mm
Weight 475 g
Additional information Marketed May 2003
Average rating (17 owners reviews)
Build quality
Optical quality
Value for money

Overall

4.29 Good
Owners reviews (17)
  1. Ronald
    Ronald 4 April 2015, 17:33
    Build quality
    Optical quality
    Value for money

    Overall

    IP 109.132.x.x
    Owner since: 3 months
    Price: 450 eur
    User profile: Amateur

    Cons: Corner sharpness, but is not very viseable in real conditions unless you crop a lot

    Pros: Quality, very good pricing second hand

    Summary: A very satisfied owner

  2. Jerry
    Jerry 10 March 2015, 11:46
    Build quality
    Optical quality
    Value for money

    Overall

    IP 88.156.x.x
    Owner since: 8 years
    Price: don't reme
    User profile: Professional

    Cons: Good build quality

    Pros: Image quality. Horrible uqlaity on edges! Worse than I ever seen! I thought it cuold be question of my lens but tested few lenses thanks to seller and - every lens has horrible edges! Shame on Canon!

    Summary: NEVER AGAIN!

  3. Filmguy
    Filmguy 7 February 2015, 14:12
    Build quality
    Optical quality
    Value for money

    Overall

    IP 73.49.x.x
    Owner since: 1 month
    Price: used $400.
    User profile: Amateur

    Cons: Typical characteristics showing in all wide angle lenses. Many of these can be dealt with in Photoshop or DxO which can minimize all the typical complained about wide angle issues.

    Pros: Well valued L lens which is great for FF but alternatively will work with crop sensor. Decent build and used market prices these at a commodity level. Some great values and even new with current rebate a very fair value.

    Summary: Great value lens that fits physically fits both camera types. Simply a very good lens for landscapes and any issues can be easily rendered out of the final print or presentation.

  4. Vanquish1976
    Vanquish1976 31 January 2015, 15:47
    Build quality
    Optical quality
    Value for money

    Overall

    IP 124.120.x.x
    Owner since: 3 months
    Price: $799
    User profile: Amateur

    Cons: Waviness distortion, hood shape, it should be better if it has IS * Not good idea to using on APS-C

    Pros: Zoom length is good for landscape and travelling on FF, best flare and ghost resistance in this lens class on Canon FF, Good IQ when choose the right aperture for each focal length, light, weather seal

    Summary: Great choice for Canon Landscape and travelling

  5. Toxin
    Toxin 26 April 2013, 12:15
    Build quality
    Optical quality
    Value for money

    Overall

    IP 171.16.x.x
    Owner since: 7 years
    Price: 555€
    User profile: Amateur

    Cons: from Weak to Bad in corners < 23mm

    Pros: Only lens in this class (ultra wide + affordable), fast AF, build quality, 77mm and not 82mm for filters, light & small.

    Summary: There is almost no other choice if you want an ultra wide & affordable zoom lens on which to screw filters.

  6. Sergey
    Sergey 5 November 2012, 23:49
    Build quality
    Optical quality
    Value for money

    Overall

    IP 109.205.x.x
    Owner since: 1 year
    Price:
    User profile: Semipro

    Cons: Bad optical characteristics on 17-20 mm: significant CA and soft corners.

    Pros: Wide angle, light and small, cheapest L-lens in Canon's range, well build.

    Summary: I'd to change this lens on the either Canon 24-70 2.8 or new Tamron 24-70 2.8 VC to have the same working wide end. And also f2.8, and also 70 mm :)

  7. Widhi
    Widhi 16 April 2012, 14:36
    Build quality
    Optical quality
    Value for money

    Overall

    IP 223.255.x.x
    Owner since: 6 months
    Price: Rp. 7.240.
    User profile: Semipro

    Cons: No IS, only f/4

    Pros: sharp, very solid build quality, very fast auto focus, weather sealing.

    Summary: Great lens for landscape and outdoor photography.

  8. Amateur666
    Amateur666 4 February 2012, 17:41
    Build quality
    Optical quality
    Value for money

    Overall

    IP 91.155.x.x
    Owner since: 1 year
    Price: too much
    User profile: Amateur

    Cons: Too expensive. Absolute POS with 5Dmk2 -crappy corner resolution.

    Pros: Fast and accurate AF.

    Summary: A flawed design from Canon.

  9. Kaufmann J.
    Kaufmann J. 30 January 2012, 06:43
    Build quality
    Optical quality
    Value for money

    Overall

    IP 93.222.x.x
    Owner since: 4 years
    Price: 750.- S
    User profile: Semipro

    Cons: weak corner sharpness on full frame, only F 4.0 there is sample variation even on L level lenses,

    Pros: verry good build quality, verry good value over time, good picture quality on APS-C, you can use the Hood of the 28-300 lens for APS-C

    Summary: affordable L glass if you don't like to spend the money for the Zeiss 21 mm prime

  10. ellenoir
    ellenoir 29 May 2011, 16:19
    Build quality
    Optical quality
    Value for money

    Overall

    IP 110.137.x.x
    Owner since: 6 months
    Price: 6500
    User profile: Semipro

    Cons: the original lens hood not compatible for APS-C user.

    Pros: value for money, very good colour, perfect build quality. the autofocus is amazing, very fast, only 2% missfocus.

    Summary: The first L lens I bought and I'm very happy with this lens.

  11. zhjiln
    zhjiln 3 November 2010, 06:43
    Build quality
    Optical quality
    Value for money

    Overall

    IP 67.181.x.x
    Owner since: 1 month
    Price: 700
    User profile: Amateur

    Cons: biggest aperture is f4, no image stabilization, 40mm is less than kit lens. corner softness (on full frame)

    Pros: superb build quality, sharp pictures, cheap price (for L series) ultra sonic motor, full time manual focus doesn't extend when zooming

    Summary: great wide lens, rugged and solid. And the way to go if the kit lens isn't doing the job.

  12. JD
    JD 19 October 2010, 01:45
    Build quality
    Optical quality
    Value for money

    Overall

    IP 203.158.x.x
    Owner since: 6 years
    Price:
    User profile: Professional

    Cons: Slight barrel distortion at wide settings, some corner CA.

    Pros: Very well built, excellent price for L lens, performance generally very good.

    Summary: Great lens for the money, especially when compared with 10-22 which is still great. Barrel distortion is quite noticeable at 17mm and that is probably its only drawback. Great performance at f/8.

  13. lensreporter
    lensreporter 10 October 2010, 03:42
    Build quality
    Optical quality
    Value for money

    Overall

    IP 80.174.x.x
    Owner since: 1 year
    Price: 440 used
    User profile: Semipro

    Cons: not as sharp than other L-lenses, at fullframe weeker

    Pros: good resolution, NO(!) CA´s, NO(!) light falloff, distortion easy to fix, fantastic build quality, good price

    Summary: Its a lens nearly without faults, at APS-C nearly perfect, fullframe just good. The prize is a nice surprise (that sounds really poetic!). Get one for APS-C and use it later as fullframe!

  14. Feby
    Feby 22 September 2010, 18:31
    Build quality
    Optical quality
    Value for money

    Overall

    IP 24.130.x.x
    Owner since: 2 years
    Price: 740$
    User profile: Semipro

    Cons: f/4, No IS, 40mm is restrictive

    Pros: BUILD QUALITY!!! Image Quality is very good - very sharp images.. Nice price.. Non extending and non rotating front element.. Hood.. Silent autofocus...

    Summary: I would say its one of the best landscape lens. Great for outdoor photos..

  15. amitzil
    amitzil 6 September 2010, 12:26
    Build quality
    Optical quality
    Value for money

    Overall

    IP 212.25.x.x
    Owner since: 2 years
    Price:
    User profile: Amateur

    Cons: Goes only to 40mm

    Pros: Excellent build quality, very sharp, super fast focus

    Summary: A great lens for my cropped body

  16. levi501
    levi501 14 September 2009, 10:47
    Build quality
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    Value for money

    Overall

    IP 170.202.x.x
    Owner since: 4 years
    Price: $799
    User profile: Professional

    Cons: None

    Pros: Razor Sharp, built like a tank, Great L optics

    Summary: Great lens for both FF and Croped DSLR

  17. jdelig
    jdelig 13 September 2009, 03:35
    Build quality
    Optical quality
    Value for money

    Overall

    IP 91.140.x.x
    Owner since: 5 years
    Price:
    User profile: Amateur

    Cons: only f4

    Pros: sharp, build quality, well priced

    Summary: Nice wide zoom lens

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