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Camera Lane

Canon EF 17-40mm F4L USM Lens (Used)

$590.00

Canon EF 17-40mm F4L USM Lens (Used)

$590.00
SKU:
EF1740LSH
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Product Description

The EF 17-40mm f/4L USM is an ultra wide angle Canon EF zoom lens meant for professional and high amateur SLR EOS camera users.

Standard zoom lens for digital EOS SLR cameras
While it is an excellent lens when used with an analogue SLR camera, the EF17-40mm f/4L USM is especially well suited for digital SLR cameras with an imaging sensor size smaller than the 35mm format. Indeed on such digital SLR cameras these focal lengths can give an angle of view approximately equivalent to that of a 28-70mm lens used on a 35mm camera, which makes it the ideal standard zoom lens.

Superior optical performance
The EF17-40mm f/4L USM has 12 lens elements arranged in 9 groups. Super Spectra Coating on the elements ensures excellent colour balance and minimises ghosting and flare. To provide superb image quality over a 17-40mm zoom range the lens uses three aspheric elements of two different types, while Super UD (Ultra-low Dispersion) glass is used to prevent the chromatic aberrations that often can degrade the subject edge clarity.

Extensive set of high-end features

  • Minimum focusing distance is just 28cm throughout the entire zoom range.
  • The Auto-focus works silently and quickly thanks to a fast central processing unit with an improved AF algorithm. You can override AF mode with manual focus should you wish.
  • Controlled by an electromagnetic diaphragm, the EF17-40mm f/4L USM’s circular aperture can achieve a more attractive appearance to out of focus background areas in a picture.
  • The front of the lens does not rotate as you focus. This means, for example, that polarising filters still function effectively as you zoom in and out. At the rear of the lens there’s a drop-in gelatin filter holder.
  • 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:

Name Canon EF 17-40mm f/4L USM
Image Circle 35mm
Type Wide Zoom
Focal Length 17 - 40mm
APS Equivalent 27 - 64mm
Max Aperture f/4
Min Aperture f/22
Diaphragm Blades 7
Lens Construction 12 elements in 9 groups, including 3 aspherical elements and 1 S-UD element
Diagonal Angle of View
(Based on image circle)
104 to 57.5 degrees
Focus Details Inner focusing; full-time manual focus and USM;
Front Element Rotation No
Zoom System Rotary
Closest Focus 0.28m / 0.92 ft.
Magnification Ratio 0.24x / 1:4.2
Filter Size 77mm + drop-in gelatin filter holder at rear
Dimensions
(Length x Diameter)
96.8mm x 83.5mm / 3.8 in. x 3.3 in.
Weight 500g / 1.1 lb
   

In very good condition. 

Trade-ins are welcome!

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