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

SpecificationsCanon EF 17-40mm f/4L USM Lens
  Canon EF 17-40mm f/4L USM Lens
Year Introduced2003
Mounts OnFull Frame, APS-C
Lenses / Groups12/9
Angle of View: Diagonal104° - 57° 30'
Aperture Range - Wide / Long f/4.0-22
Number of Aperture Blades 7
Rounded Aperture?
Manufacturer Specification Weight 16.8 oz  (475g)
Actual Weight 16.6 oz  (470g)
Lens Hood Weight 1.2 oz  (35g)
In-Use Weight 17.8 oz  (505g)
Manufacturer Spec Size (DxL) 3.31 x 3.82”  (84 x 97mm)
Measured Size (DxL) 3.28 x 4.09”  (83 x 104mm)
Max Length at Full Extension 4.09”  (104mm)
Internal Zoom? / Extends with Zoom? Y / N
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 4.27 x 1.8”  (108.4 x 45.6mm)
Lens Length with Hood (Min-Max) 5.71 - 5.71”  (145 - 145mm)
Size of Rings: Focus / Zoom 0.86” / 0.8”  (21.9mm / 20.2mm)
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 11.02”  (280mm)
Tested Min Focus Distance (Wide / Long) 10.51” / 10.55”  (267mm / 268mm)
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'
1200mm x 800mm Subject Framing Distance 17mm = 668mm
20mm = 756mm
24mm = 916mm
28mm = 1072mm
35mm = 1315mm
40mm = 1441mm
17mm = 1018mm
20mm = 1154mm
24mm = 1391mm
28mm = 1613mm
35mm = 2021mm
40mm = 2217mm
Review Canon EF 17-40mm f/4L USM Lens
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