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.
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.Lens Type: Super TelephotoMagnification: 1.40xHeight: 1.1Diameter: 2.8"Weight (Approximate): 7.94 ozCompatibility: Canon SLR Lenses:L SeriesEF 70-200/2.8LEF 70-200/2.8L ISEF 70-200/4LEF 100-400/4.5-5.6L"
Master Lens Focal Length ExtensionThe Canon Extender EF 1.4x III is specially designed to work in conjunction with L-series super-telephoto lenses, extending their focal length by a factor of 1.4x while still delivering superb image quality.
High-quality Optics and ConstructionThe Canon Extender EF 1.4x III boasts 7 elements in 3 groups with Canon’s Super Spectra coating to minimize ghosting and flare. The front and rear elements are treated with Fluorine Coating which actively repels water, dust and dirt, making it easier to clean the extender while helping maintain image quality.
Improved Communication between Lens and CameraThe Canon Extender EF 1.4x III integrates a microprocessor to provide accurate transfer of data from between the lens and camera, delivering an improved performance in AF and metering.