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It features a built-in microcomputer for seamless communication among camera body, lens and extender, features careful lens placement and coatings to minimize ghosting, flare and chromatic aberration, and even has a new Fluorine coating that keeps soiling, smears, fingerprints to a minimum. Extender EF 2X III meets necessary standards in terms of rugged, dustproof and water-resistant construction, and should be in every professional's camera bag.
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|Memory Card Type||No|
|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, 325g|