Canon Extender EF 2X III - Converter Extender

Canon Extender EF 2X III - Converter Extender is designed to extend a lens's focal length by a factor of 2x, the redesigned Canon EF 2.0X III Teleconverter delivers optical performance on par with the finest 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, flare, and chromatic aberration, and even has a new Fluorine coating that keeps soiling, smears, and fingerprints to a minimum. Canon 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. 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.