Canon EF 20mm f/2.8 USM Lens Specifications and Measurements

SpecificationsCanon EF 20mm f/2.8 USM Lens
  Canon EF 20mm f/2.8 USM Lens
Year Introduced1992
Mounts OnFull Frame, APS-C
Lenses / Groups11/9
Angle of View: Diagonal94°
Angle of View: Horizontal84°
Angle of View: Vertical62°
Aperture Range - Wide / Long f/2.8-22
Number of Aperture Blades 5
Rounded Aperture?
Manufacturer Specification Weight 14.3 oz  (405g)
Actual Weight 13.9 oz  (395g)
Lens Hood Weight 0.9 oz  (25g)
In-Use Weight 14.8 oz  (420g)
Manufacturer Spec Size (DxL) 3.07 x 2.8”  (78 x 71mm)
Measured Size (DxL) 3.03 x 3.11”  (77 x 79mm)
Max Length at Full Extension 3.11”  (79mm)
Internal Zoom? / Extends with Zoom? N / N
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 3.79 x 1.61”  (96.3 x 40.8mm)
Lens Length with Hood (Min-Max) 4.56 - 4.56”  (115.9 - 115.9mm)
Size of Rings: Focus / Zoom 0.72”  (18.2mm)
Filter Size 72mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type Ring USM
Full Time Manual Focus Y
Focus Ring Rotation 81°
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type Y / Window
Close Focus  
Specified Min Focus Distance 9.84”  (250mm)
Tested Min Focus Distance (Wide / Long)
Maximum Magnification (MM) 0.14x
Magnification Range with 12mm Ext Tube 0.72-0.6x
Magnification Range with 25mm Ext Tube n/ax
Tripod Ring Included? / Removable? N
Zoom Ring Lock Switch? N
Lens Hood Included / Model? N / EW-75II Buy ►
Weather Sealed? / Filter Required? N
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? N / LP1214 Buy ►
47.25" x 31.5" Subject Framing Distance 20mm = 2.53'
1200mm x 800mm Subject Framing Distance 20mm = 770mm
Review Canon EF 20mm f/2.8 USM Lens
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