Canon EF 20mm f2.8 USM Lens

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The Canon EF 20mm f2.8 USM Lens is a versatile lens that delivers superb wide-angle images in any scenario. With its wide-angle field of view and extended depth of field, the EF 20mm f2.8 is a great choice for photographers on the move shooting landscapes, architecture or reportage. Easy to hold and carry at 405g, the 20mm lens is exceptionally portable and offers a maximum f2.8 aperture to allow flash-free photography and sharp shooting in low light conditions. The Ultra Sonic Motor (USM) ensures quick autofocus and in near silence. Furthermore, full-time override is available, making it possible to adjust focus without leaving AF mode.

The Canon EF 20mm f2.8 USM Lens



  • Ultra-wide-angle lens with angle of view of 94°
  • USM focus motor with full-time manual focus override
  • 25cm closest focusing distance
  • Super Spectra coatings

Dynamic wide angle design
By offering a field of view of 94°, the EF 20mm f/2.8 USM is able to take in the complete field of human vision, and much more. A great lens for the landscape or documentary photographer. Distortion is highly corrected, for a natural perspective when shooting architecture and interiors.

Fast maximum aperture
A maximum aperture of f/2.8 allows flash-free, hand-held shooting in low-light conditions when using a tripod is impractical.

Aspherical and UD elements
For optimum visual performance, the lens incorporates aspherical elements, to correct spherical aberrations, and Super UD (ultra-low dispersion) elements to eliminate chromatic aberrations. The result is crisp, high-contrast undistorted image quality all the way across the frame.

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.

Super Spectra coating
Super Spectra coatings help ensure accurate colour balance and high contrast. They also suppress flare and ghosting by absorbing light that would otherwise be reflected off internal lens elements and the camera's digital sensor.

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Product Specification

Aperture Blades 5
Autofocus Motor USM
Colour Black
Enlargement Ratio 1:7.1
Filter Thread Size (mm) 72
Focal Length – Tele (mm) 20
Focal Length – Wide (mm) 20
Hood Model EW 75-II
Lens Mount Canon EF
Lens Type Wide-Angle Prime
Maximum Aperture – Tele 2.8
Maximum Aperture – Wide 2.8
Minimum Aperture 22
Number of Lens Elements 11
Number of Lens Groups 9
Sensor Format Full Frame
Size (mm) 77.5 x 70.6 mm
Weight (g) 405
Minimum Focus Distance (m) 0.3
Manufacturer Link Canon
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Product Code: 12806-wex Manufacturers Part Number: 2509A010AA Got a question? Get it answered...