Canon Extender EF 2x III

Category: Canon, Lenses, SLR

Vendor: Canon

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Canon Extender EF 2x III

Designed to extend a lenses focal length by a factor of 2x, the Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses. It delivers seamless communication among camera body, lens and extender, and 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.


Focal Length & Maximum Aperture

Magnification: 2.0x

Lens Construction

9 elements in 5 groups

Max. Diameter x Length, Weight

2.8 x 2.1 in, 11.5 oz. / 72.0 x 52.7mm, 325gNote: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. Additionally, please see the lens and/or camera body manual for full compatibility information with the Extender EF 2X III.

† Prices and specifications subject to change without notice.

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