Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender; features careful lens placement and coatings to minimize ghosting and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.
|Product Compatibility||Canon SLR Lenses: L Series EF 70-200/2.8L EF 70-200/2.8L IS EF 70-200/4L EF 100-400/4.5-5.6L|
|Lens Construction||7 Elements in 3 Groups|
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