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Canon Extender EF 2x III

Abel Code: CN-4410B002
Mfr. Code: 4410B002
Estimated to Ship – 5-10 Business Days
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
Extends focal length by a factor of 2x. Canon says the Canon Extender EF 2x III delivers optical performance on par with Canon super telephoto lenses.
Key Highlights
  • Magnifies 2.0x
  • Coatings minimize ghosting & flare
  • Fluorine coating resists smudges


The Canon Extender EF 2x III is designed to extend a lenses' focal length by a factor of 2x. 

This extended can deliver seamless communication along the camera body, lens and extender. It features coatings to minimize ghosting, flare, and chromatic aberration. The Fluorine coating resists soiling, smears and fingerprints.

Extender EF 2X III meets all necessary standards in terms of rugged, dustproof and water-resistant construction, and should be in every professional's camera bag.


  • Magnification: 2.0x
  • Lens Construction: 9 elements in 5 groups
  • Max. Diameter x Length: 2.8 x 2.1 in. / 72.0 x 52.7mm
  • Weight: 11.5 oz./325g

Compatible with:

  • Fixed focal length L-Series lenses in 135mm and over
  • Canon 70-200mm 2/8L - EF Mount
  • Canon 70-200mm 2/8L IS - EF Mount
  • Canon 70-200mm 4L - EF Mount
  • Canon 100-400mm 4.5-5.6L - EF Mount


Key Highlights

  • Magnifies 2.0x
  • Coatings minimize ghosting & flare
  • Fluorine coating resists smudges
  • dust- & water-resistant
  • Compatible with L-Series 135mm & over
  • EF Mount
  • Optical Adapter

Lens Characteristics

Max Dimensions (Diameter x Length):
2.8" x 2.1" - 72mm x 52.7mm
Elements & Groups:
9 elements in 5 groups
Magnification Ratio:

Mount / Optical Lens Adapters

Adapter Mount Side A (Lens):
Adapter Type:
Optical Adapter


3.7 in
3.7 in
5.3 in
1 lb
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