Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses (Renewed)

Designed to extend a lenses 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, 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.

• Compatible with Select EF Mount Lenses. Note: 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
• 2.0x magnification factor
• 9 elements in 5 groups lens construction
• Spectra coating reduces ghosting/flare