Canon EF 400mm f/4 DO IS USM Lens Specifications and Measurements

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SpecificationsCanon EF 400mm f/4 DO IS USM Lens
  Canon EF 400mm f/4 DO IS USM Lens
Mounts On Full Frame, APS-C
Lenses / Groups 17/12
Angle of View: Diagonal 6°10'
Angle of View: Horizontal 5°10'
Angle of View: Vertical 3°30'
Aperture Range - Wide / Long f/4.0-32
Number of Aperture Blades 8
Rounded Aperture?
Manufacturer Specification Weight 1940g
Actual Weight 1875g
Lens Hood Weight 220g
Tripod Ring Weight 139g
In-Use Weight 2234g
Manufacturer Spec Size (DxL) 128 x 232mm
Measured Size (DxL) 128.14 x 241.49mm
Max Diameter at Tripod Ring 130.5mm
Max Length at Full Extension 241.49mm
Internal Zoom? / Extends with Zoom?
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 160.12 x 142.5mm
Lens Length with Hood (Min / Max)
Size of Rings - Zoom / Focus / 30.5mm
Filter Size DI 52mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type Ring USM
Full Time Manual Focus Y
Focus Ring Rotation 119°
Focus Limiter? / Focus Limiter Ranges Y /
Distance Scale? / Type Y / Window
Close Focus  
Specified Min Focus Distance 3500mm
Tested Min Focus Distance (Wide / Long) 3323mm
Maximum Magnification (MM) 0.12x
Magnification Range with 12mm Ext Tube 0.16-0.03x
Magnification Range with 25mm Ext Tube 0.2-0.07x
Tripod Ring Included? / Removable? Y / Y
Zoom Ring Lock Switch? N
Lens Hood Included / Model? Y / ET-120 Buy ►
Weather Sealed? / Filter Required? Y / N
Image Stabilization? / Stops? / Tripod Sensing? Y / 2 / Y
Extender Compatible? Y
Case Included? / Type? Y / Lens Case 400B Buy ►
1200mm x 800mm Subject Framing Distance 400mm = 13491mm
600mm x 400mm Target:
560mm = 9278mm (w/ 1.4x)
800mm = 13464 (w/ 2.0x)
Year Introduced 2001
Review Canon EF 400mm f/4 DO IS USM Lens
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My Recommended Retailers

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B&H Photo
Beach Camera or
the Canon Store (new or refurbished)
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