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Canon EF 20mm f/2.8 USM Lens

Ultra-wide angle lens for Canon EOS SLR cameras

Includes a identifier rear lens cap identifier rear lens cap
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  • Canon EF 20mm f/2.8 USM Lens

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Our take on the Canon EF 20mm f/2.8 USM Lens

by Dave Bar
Canon
CANON AUTHORIZED DEALER

Canon's EF 20mm f/2.8 lens gives you wide-angle shooting versatility and sharp, richly colored images. Its short focal length and large maximum aperture make it ideal for flash-free indoor photography, and for capturing full-length people shots or an entire building in a single frame. It also offers an extra-close focusing distance for taking detailed closeups and interesting portraits.

This lens gives you precise, silent auto focusing using advanced Canon optics and a powerful ultrasonic motor (USM). A wide, easy-to-use focusing ring allows full-time manual focus and lets you instantly override the auto focus system whenever necessary with just a twist.

Need a case for your camera's lens? Check out Tamrac's lens compatibility chart to find a case that fits (requires Adobe® Reader®).

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Highlights:

  • EF 20mm f/2.8 USM Canon wide-angle lens
  • compatible with Canon digital and autofocus film SLR cameras
  • effective focal length:
    • 20mm with 35mm film or full-frame digital cameras
    • 32mm with APS-C sensor cameras
  • ideal for landscapes, architectural photography, tight interior or group shots
  • USM (Ultrasonic Motor) for fast, silent focusing
  • auto focus system allows full-time manual focus override with lens still in AF mode
  • minimum focus distance: 9.6 in.
  • minimum aperture: f/22
  • lens construction: 11 elements in 9 groups
  • attachment/filter size: 72mm
  • lens is 3-1/16" in diameter, 3-1/8" long
  • weight: 14.3 oz.
  • warranty: 1 year
  • Our 60-day money-back guarantee
Supplied Accessories:
  • front and rear lens caps

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Brand Compatibility
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Canon
Image Stabilization
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No
Focal Length
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20mm
Maximum Aperture
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f/2.8
Weight
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14.3
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • EF 20mm f/2.8 USM lens
  • Lens cover (installed)
  • Back cover (installed)
  • Instructions
  • Warranty Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Overview: The Canon EF 20mm f/2.8 USM is an ultra-wide-angle lens for serious applications. The lens is easy to hold and carry at 14.3 oz. (405g). the EF 20mm f/2.8 USM lens features a floating rear focusing system that obtains sharp images at all subject distances.

Compatibility: The EF 20mm f/2.8 USM is an EF Canon lens which means it is compatible with all Canon digital SLRs (those that accept EF and EF-S lenses, plus those that accept EF only; which would be the Full-frame EOS 5D Mark II), as well as Canon EOS film SLRs.

Lens Construction: The Canon EF 20mm f/2.8 USM lens features a lens construction with 11 elements in 9 groups.

Diagonal Angle Of View: This Canon wide-angle lens provides a diagonal angle of view of 94°.

Ultrasonic Motor (USM): With the Ultrasonic Motor (USM), you can expect fast and quiet focusing capability.

Auto/Manual Focus: To shoot in Autofocus mode, set the focus mode switch on the lens to "AF". To manually focus the camera, set the switch to "MF", and focus by turning the focusing ring. The focusing ring always works, regardless of the focus mode.

Focusing Range: You can set the focusing distance range from 10" to infinity. By setting a suitable focusing distance range, the autofocusing time will be shorter.

Infinity Compensation Mark: To compensate for shifting of the infinity focus point that results from changes in temperature, the lens features an Infinity Compensation Mark. The infinity position at normal temperature is the point at which the vertical line of the L mark is aligned with the distance indicator on the distance scale.

Infrared Index: The infrared index corrects the focus setting when using monochrome infrared film. Focus on the subject manually, then adjust the distance setting by moving the focusing ring to the corresponding infrared index mark.

Optional Accessories: You can attach optional filters to the filter mounting thread on the front of the lens. You can also attach an optional lens hood.

 
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Add accessories for the Canon EF 20mm f/2.8 USM Lens

Protect your lens from minor bumps and scratches. Lens filters can reduce reflections or glare, or increase contrast on your shots. See all categories & accessories

Hoya Alpha UV Filter Protective filter for compatible digital camera lenses (72mm)
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Kenko Standard-coated UV Filter For compatible digital camera lenses (72mm)
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Hoya Lens Hood For compatible camera lenses (72mm)
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BlackRapid Lens Bling Identifier cap for EF-mount lenses (Canon Skull)
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Think Tank Photo Lens Changer 15 V2.0 Bag for small interchangeable lenses
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Nikon Fog Eliminator 3-Pack Reusable cleaning cloth for fog resistance on lens surfaces
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Your Price: $4.95
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For a more in-depth review and enhanced detailed information on the Canon EF 20mm f/2.8 USM Lens, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_280EF20MM/Canon-EF-20mm-f-2-8-USM-Lens.html ).