Canon EF2XIII Extender EF 2X Mark III Lens

Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2X III 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, 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.

• Canon Fixed Focal Length L-Series Lenses 135mm and over

Canon EF Lenses:

• EF 70-200/2.8L
• EF 70-200/2.8L IS
• EF 70-200/4L
• EF 100-400/4.5-5.6L