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

AED2,382.00

Brand

100% Original Brand

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Key Features
  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • One Super Ultra-Low Dispersion Element
  • Three Aspherical Element
Spanning a versatile wide-angle range, theย EF 17-40mm f/4L USM Lensย is aย Canonย L-series zoom featuring a constant f/4 maximum aperture along with a sophisticated optical design and durable construction

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

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.

Benefits

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

Detailed Features

Take a look at a more detailed look into the Canon EF 17-40mm f/4L USM

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.

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