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

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.