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

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

  • $94900



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Standard $11.95
Insured $15.95
Stock icon Australian Stock
100% Genuine Australian Stock
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2-Year Canon Australia Warrant

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

Features

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 EF 17-40mm 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.

Specifications

Angle of view Horizontal: 93° - 49°20'
Vertical: 70°30' - 34°
Diagonal: 104° - 57°30
Lens construction 12 elements in 9 groups
No. of diaphragm blades 7
Minimum aperture 22
Closest focusing distance 0.28m
Maximum magnification 0.24x
Distance information Yes
Image stabilizer No
AF actuator USM
Filter diameter 77mm
Max. diameter x length 83.5 x 96.8mm
Weight 500g

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