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Canon EF 1.4x Extender III

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The Canon EF 1.04x III extender is a direct replacement for the current 1.4x extender and has been designed to provide faster autofocusing and improved autofocus precision with compatible EF lenses.

The extender includes an anomalous dispersion lens element for reduced chromatic aberration and enhanced optical image quality together with a newly developed microcomputer that increases AF precision when the extender is used with a IS Series II EF super-telephoto lens.

The extender is also equipped with rubber gaskets and seals to enhance weather resistance and a new fluorine anti-smear coating is applied to the front and rear elements.

Rental Package Includes: Extender F&R lens caps and pouch.

Please Note: The Canon 1.4x will not fit on wide angle zooms, standard zooms, wide angle primes or many third-party lenses. In some cases your camera may also be incompatible.





  • 1.4x magnification
  • 7/3 Lens Elements /Groups
  • Microcomputer Controlled
  • Spectra Coating Reduces Ghosting/ Flare
  • Protective Fluorine Coating
  • Dust and Water Resistant
  • Length 1.1” (27.2mm))
  • Diameter 2.8” (72mm)
  • Weight 7.9oz


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