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

17-40mm f/4L USM Wide Angle Zoom Lens from Canon

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

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

17-40mm f/4L USM Wide Angle Zoom Lens from Canon

SKU: 8806A007AA

Cat no: 10112

  • Superb optical performance throughout the zoom range
  • Fast autofocus speed
  • Highly resistant to dust and moisture
  • 28cm minimum focusing distance at all focal lengths
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Estimated Delivery 2 to 3 days

£591.00 (ex vat) £709.20 (incl vat)

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

17-40mm f/4L USM Wide Angle Zoom Lens from Canon

The EF 17-40mm f/4L USM is an ultra wide-angle zoom lens that offers excellent image quality and a constant maximum aperture. Its compact, lightweight body makes it an ideal travelling companion. A Super Spectra coating has also been applied to suppress flare and ghosting for improved contrast in difficult lighting conditions. Complementing the imaging capabilities, this wide-angle zoom also features a ring-type USM and internal focusing mechanism to afford quick, quiet, and accurate autofocus performance, as well as full-time manual focus override.

Ultra-wide or standard zoom
The EF 17-40mm f/4L USM acts as an ultra-wide angle zoom on film or full-frame digital EOS cameras. On DSLRs equipped with APS-C sized sensors it acts as a standard zoom, giving an angle of view equivalent to a 28-70mm lens on a full-frame camera.

Close focusing
Minimum focusing distance is just 28cm throughout the entire zoom range.

Superior optical performance
The EF17-40mm f/4L USM has 12 lens elements arranged in nine groups. Super Spectra coating ensures excellent colour balance and minimises ghosting and flare. To provide superb image quality over the complete 17-40mm zoom range the lens uses three aspheric elements. Super UD (Ultra-low Dispersion) glass prevents chromatic aberrations.

Ultrasonic focusing
A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode.

Non-rotating front element
The front of the lens does not rotate, which makes using specialised filters, such as polarisers and graduates, easier. A drop-in gelatine-filter holder can be found at the back of the lens.

Smooth background blur
A virtually circular aperture diaphragm gives out of focus regions a softer, more uniform feel. Sharp foreground objects stand out against a smooth blurred background.

Weather resistant
Highly resistant to moisture and dust, the EF17-40mm f/4L USM is ideally suited for use in harsh environments. Environment friendly lead-free glass is used throughout its construction.

Key Features

  • Superb optical performance throughout the zoom range
  • Fast autofocus speed
  • Highly resistant to dust and moisture
  • 28cm minimum focusing distance at all focal lengths

Product Specification

Performance
Focal Length 17 - 40mm
Aperture
  • Maximum: f/4
  • Minimum: f/22
Camera Mount Type Canon EF
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 104° - 57° 30'
Minimum Focus Distance 11.02" (28 cm)
Magnification 0.24x
Maximum Reproduction Ratio 1:4
Elements/Groups 12 / 9
Diaphragm Blades 7, Rounded
Features
Autofocus Yes
Physical
Filter Thread
  • Front: 77 mm
  • Rear: N/A
Dimensions (DxL) Approx. 3.29 x 3.81" (83.5 x 96.8 mm)
Weight 1.10 lb (500 g)

This product includes:

  • Canon EF 17-40mm f/4L USM Lens
  • E-77 II 77mm Lens Cap
  • Lens Dust Cap E (Rear)
  • EW-83E Lens Hood
  • Lens Case LP1319

Canon's European CPS programme is a completely free service that offers Canon professional photo and video users exclusive access to a range of benefits. These include access to CPS support at major events; a priority repair service; and local CPS support in selected European countries. Free back-up equipment loans during repair periods are also available, depending on the level of your CPS membership. Information about CPS is now available in 12 languages — to find out more please select your CPS territory/language from the drop down menu above.

The service operates on a three-tier basis to provide a programme that’s accessible, responsive and tailor-made to the needs of professional photographers. The appropriate level of CPS membership will be automatically assigned to you depending on the number of qualifying bodies and lenses that you registered with CPS.

For CPS Video membership videographers must own one qualifying Canon professional camcorder. For a full list of qualifying CPS Photo and CPS Video products please visit the link ‘view qualifying products’ here.

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Professional photographers and videographers can also register for CPS membership in the following 23 countries: Algeria, Azerbaijan, Bahrain, Belarus, Bulgaria, Cyprus, Egypt, Estonia, Georgia, Greece, Iceland, Israel, Jordan, Kazakhstan, Latvia, Lebanon, Lithuania, Malta, Oman, Qatar, Saudi Arabia, Serbia, and Slovakia. Although CPS repairs and loans are not available in these 23 countries all registered CPS members from these countries can take advantage of CPS repair and loan benefits when they travel to the 27 countries (named in the paragraph above) that do offer these services.

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