Canon EF 17-40mm f/4L USM Lens Specifications and Measurements

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SpecificationsCanon EF 17-40mm f/4L USM Lens
  Canon EF 17-40mm f/4L USM Lens
Year Introduced 2003
Mounts On Full Frame, APS-C
Lenses / Groups 12/9
Angle of View: Diagonal 104° - 57° 30'
Angle of View: Horizontal
Angle of View: Vertical
Aperture Range - Wide / Long f/4.0-22
Number of Aperture Blades 7
Rounded Aperture?
Manufacturer Specification Weight 16.8 oz
Actual Weight 16.6 oz
Lens Hood Weight 1.2 oz
In-Use Weight 17.8 oz
Manufacturer Spec Size (DxL) 3.31 x 3.82”
Measured Size (DxL) 3.28 x 4.09”
Max Length at Full Extension 4.09”
Internal Zoom? / Extends with Zoom? Y / N
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 4.27 x 1.8”
Lens Length with Hood (Min / Max) 5.71 / 5.71”
Size of Rings - Zoom / Focus 0.8” / 0.86”
Filter Size 77mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type Ring USM
Full Time Manual Focus Y
Focus Ring Rotation 95°
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type Y / Window
Close Focus  
Specified Min Focus Distance 11”
Tested Min Focus Distance (Wide / Long) 10.51” / 10.55”
Maximum Magnification (MM) 0.25x
Magnification Range with 12mm Ext Tube 0.83-0.32x
Magnification Range with 25mm Ext Tube 1.02-0.4x
Zoom Ring Rotation 53°
Tripod Ring Included? / Removable? N
Zoom Ring Lock Switch? N
Lens Hood Included / Model? Y / EW-83E Buy ►
Weather Sealed? / Filter Required? Y / Y
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? Y / LP1319 Buy ►
47.25" x 31.5" Subject Framing Distance 17mm = 2.19'
20mm = 2.48'
24mm = 3.00'
28mm = 3.52'
35mm = 4.31'
40mm = 4.73'
On APS-C Body:
17mm = 3.34'
20mm = 3.79'
24mm = 4.56'
28mm = 5.29'
35mm = 6.63'
40mm = 7.27'
Review Canon EF 17-40mm f/4L USM Lens
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Beach Camera or
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