CANON EF 17-40 mm f/4L USM Wide-Angle Zoom Lens

Product code: 043410

Product features

  • Ideal for landscape and architecture
  • Aperture range: f/4.0 - f/22
  • Filter diameter: 77 mm
  • Compatible with Canon EF mount
  • Silent focus
£649.00

Product features

  • Ideal for landscape and architecture
  • Aperture range: f/4.0 - f/22
  • Filter diameter: 77 mm
  • Compatible with Canon EF mount
  • Silent focus
Product information
Top features:

- Versatile zoom range for photographing a range of subjects

- Advanced Canon optics for brilliant results

- Close focusing distance for detailed shots

- Experiment with filters thanks to the non-rotating front element

- Weather resistant design for use out in the field

Versatile zoom range


The Canon EF 17-40 mm f/4L USM lens offers an ultra-wide angle zoom range on full-frame EOS cameras or acts as a standard zoom when mounted on DSLRs equipped with APS-C sized sensor – giving an angle of view equivalent to a 28-70mm lens.

Advanced Canon optics


The advanced Canon optics has been developed with 12 lens elements arranged in nine groups. The Super Spectra lens coating works to ensure outstanding colour balance with minimal ghosting and flare.

With three aspheric elements, the Canon EF wide-angle lens provides stunning image quality over the 17-40mm zoom range, with the Super Ultra-low Dispersion glass working to prevent chromatic aberrations.

Close focusing distance


A close focusing distance of just 28cm throughout the entire zoom range means you can achieve stunning close-up shots with beautiful background blur.

The Canon EF 17-40mm lens has been constructed with an ultrasonic motor that drives a speedy focusing performance in near silence. The outstanding holding torque reaches the precise point of focusing, ensuring a consistently accurate performance.

What's more, there is full-time manual override ready and available, allowing you to make focus adjustments without leaving AF mode.

Experiment with filters


The front of the lens is non-rotatable, this makes it easier to use specialised filters such as polarisers and colour graduates. There is a drop-in gelatine-filter holder located at the back of the EF lens.

Weather resistant


The Canon lens boasts a lead-free glass construction, making it highly resistant to dust and moisture – ideal for taking photos in rough conditions and challenging environments.
Specification

Technical specifications for CANON EF 17-40 mm f/4L USM Wide-Angle Zoom Lens

OVERVIEW
Lens type Zoom
Lens category Wide-angle
Compatibility Canon EF mount
Image stabilisation No
OPTICAL FEATURES
Focal length 17 - 40 mm
Maximum aperture f/4
Minimum aperture f/22
Focusing Manual & autofocus
Minimum focusing distance 0.28 m
CONSTRUCTION
Elements and grouping 12 elements in 9 groups
Diaphragm blades 7
Filter diameter 77 mm
Silent focusing Yes
Weather sealed Yes
GENERAL
Box contents - Canon EF 17-40mm f/4L USM Wide-Angle Zoom Lens
- Lens caps
- Lens hood (EW83E)
- Case (LP1319)
Dimensions 83.5 x 96.8 mm (D x L)
Weight 500 g
Manufacturer's guarantee 1 year
Customer reviews

CANON EF 17-40mm f/4L USM Ultra Wide-Angle Zoom Lens reviews verified by reevooReevoo

9 reviews

Reviews from:Sort by:
(9.0 out of 10)
Ease of use
9.4
Compatibility
9.4
Performance
9.4
Value for money
8.7
Overall rating
9.0
Scores 9.0 out of 10 based on 9 reviews
Show more score details
(10 out of 10)

Anna

GB
+
Perfect everyday wide angle lens
Reviewer left no comment
Confirmed purchase: 30 December 2016
Published on: 21 January 2017
(10 out of 10)

Don

Matlock GB
+
Absolutely love it's performance!!!!
Nothing
Confirmed purchase: 26 August 2016
Published on: 16 October 2016
(9 out of 10)

A

London GB
+
Great wide angle lens. Quick and easybto use. Takes good photos of landscapes and even some on portraits.
Would lobe to have better apperture, but I guess I would have to pay much more then.
Review-photo-icon
50x50
415x380

The photo is taken on canon 6D with this lens. Photo is not edited

1 of 1 people found this review helpful
Confirmed purchase: 07 February 2016
Published on: 13 October 2016
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£649.00
CANON EF 17-40 mm f/4L USM Wide-Angle Zoom Lens
£649.00