Canon EF 1.4x II Extender Specifications and Measurements

SpecificationsCanon EF 1.4x II Extender
  Canon EF 1.4x II Extender
Year Introduced
Year Discontinued2011
Mounts OnFull-Frame, APS-C
Lenses / Groups5/4
Aperture Range - Wide / Long f/-
Number of Aperture Blades
Rounded Aperture?
Manufacturer Specification Weight 7.8 oz  (220g)
Actual Weight 7.6 oz  (215g)
In-Use Weight 7.6 oz  (215g)
Manufacturer Spec Size (DxL) 2.87 x 1.07”  (72.8 x 27.2mm)
Measured Size (DxL) 2.89 x 1.65”  (74 x 41.8mm)
Max Length at Full Extension 1.65”  (41.8mm)
Internal Zoom? / Extends with Zoom? N / N
Internal Focusing? / Extends with Focusing? N / N
Lens Length with Hood (Min-Max)
Size of Rings: Focus / Zoom
Filter Size
Front Element (Filter Mount) Rotates N
AF Motor Type
Full Time Manual Focus N
Focus Limiter? / Focus Limiter Ranges
Distance Scale? / Type /
Close Focus  
Specified Min Focus Distance 0”  (0mm)
Tested Min Focus Distance (Wide / Long)
Maximum Magnification (MM)
Lens Hood Included / Model? /
Weather Sealed? / Filter Required? /
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? Y /
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