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Canon EF 20mm f/2.8 USM Wide-Angle Fixed Lens
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- Focal length and maximum aperture: 20mm 1:2.8
- Lens construction: 11 elements in 9 groups
- Diagonal angle of view: 94 Degree
- Rear focusing system with USM focus adjustment
- Closest focusing distance: 0.20m/0.66 ft.
- EF mount; wide-angle lens
- Floating system; inner focusing; full-time manual focus
|Lens Compatibility Information: Canon EF-S lenses are only compatible with APS-C sensor DSLR cameras. Canon EF lenses are compatible with Canon full-frame and APS-C DSLR cameras.
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Lens Hood Part Number||EW-75II|
|Compatible Mountings||Canon EF|
|Included Components||Lens Caps - Adorama 1 Year Limited Warranty|
|Item Dimensions||3.07 x 3.07 x 2.8 inches|
|Item Display Weight||405 grams|
|Item Weight||0.89 pounds|
|Macro Focus Range||0.25 m|
|Manufacturer Warranty Description||1 year limited|
|Material Type||Plastic barrel, Metal mount|
|Maximum Aperture Range||F2.8|
|Maximum Focal Length||20|
|Maximum Format Size||35mm full frame|
|Minimum Focal Length||20 mm|
|Number of Diaphragm Blades||5|
|Number of Elements||11|
|Number of Groups||9|
|Photo Filter Thread Size||72 mm|
|Real Angle Of View||94 Degrees|
|Shipping Weight||1.3 pounds|
Compare to similar items
This item Canon EF 20mm f/2.8 USM Wide-Angle Fixed Lens
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Compatible Camera Mount||Canon EF||Canon EF-S||Canon EF||Canon EF-S||Canon EF||Canon EF|
|Focus Type||Ultrasonic||Stepper motor||Stepper motor||Stepper motor||manual-focus||Ring-type ultrasonic|
|Item Dimensions||3.07 x 2.8 x 3.07 in||2.68 x 0.91 x 2.68 in||2.72 x 1.54 x 2.72 in||2.95 x 2.83 x 2.95 in||3.43 x 3.78 x 3.43 in||2.68 x 2.2 x 2.68 in|
|Item Weight||0.89 lb||—||5.61 ounces||0.53 lb||1.22 lbs||0.62 lb|
|Lens Type||wide-angle||Prime lens||Prime lens||wide-angle||wide-angle-prime||wide-angle|
|Maximum Focal Length||20||24 millimeters||50 millimeters||18 millimeters||14 millimeters||24 millimeters|
|Minimum Focal Length||20 millimeters||24 millimeters||50 millimeters||10 millimeters||14 millimeters||24 millimeters|
|Photo Filter Thread Size||72 millimeters||52 millimeters||49 millimeters||67 millimeters||—||58 millimeters|
The Canon EF 20mm f/2.8 USM is an ultra wide-angle lens for serious applications. Plus it’s easy to hold and carry at 14.3 oz. (405g). A floating rear focusing system gives sharp images at all subject distances and an ultrasonic motor (USM) enables fast, smooth and quiet autofocus. Full-time manual focus override allows for precise manual focus even when in AF mode. The minimum focus distance is 9.8 inches.
From the Manufacturer
Wide-angle lenses let you capture more of the image by broadening the angle of view and increasing the depth of field, thereby bringing more of the area into focus. The lenses also provide a unique perspective by expanding the apparent distance between the foreground and the background. This Canon 20mm f/2.8 is no exception, with such additional features as a floating rear focusing system with an Ultra Sonic Motor (USM), a 0.8-foot close focusing distance, and a 94-degree diagonal angle of view. As with all Canon lenses, the 20mm lens carries a one-year warranty.
- Focal length: 20mm
- Maximum aperture: f/2.8
- Lens construction: 11 elements in 9 groups
- Angle of view: 94 degrees
- Focus adjustment: Rear focusing system with USM
- Close focusing distance: 0.8 feet
- Filter size: 72mm
- Corresponding mounts: Canon
- Dimensions: 3.1 inches in diameter and 2.8 inches long
- Weight: 14.3 ounces
- Warranty: 1 year
The optical performance, fast f/2.8 speed and ultra-wide-angle coverage make this a great choice for many applications, like interiors, scenics, travel and photojournalism. It uses a "floating" optical system for excellent sharpness even at its minimum focusing distance of under 10 inches (0.25m), and with a ring-type USM and full-time manual focusing capability, offers the speed and handling pros expect.
Wide and Fast
If you need an ultra-wide angle and a large aperture, one of the following lenses will fit the bill. Ultra-wide-angle lenses can capture scenes beyond your natural field of vision. The EF 15mm f/2.8 Fisheye, the widest of them all, has a 180∞ angle of view. For more normal-looking wide-angle shots, there are longer wide-angle lenses up to 35mm with the maximum aperture you need.
Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras
Top customer reviews
I ran into an online review saying I have to get a copy for my full frame camera. Apparently it has a problem with vignetting, but modern cameras including my 6D come with software that automatically corrects for it, so you can't tell.
At its width and aperture it makes a fantastic indoor lens. As others have mentioned, it focuses REALLY fast. I don't know why a 20mm needs to focus that fast, but it's really cool.
At 20mm I don't miss not having IS, but I don't do much video so that might be a drawback.
At this price, if you own a full frame camera it's a great lens to have especially if you're avoiding the very pricey zooms. Buy this, a nifty fifty, and the cheapest telephoto you can find, then start shooting and don't look back!
The lens is well built, has great image quality and is just a well rounded ultra wide angle lens. I bought this to use on a Canon 6D to shoot landscapes and night scenes. Absolutely no regrets.