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 featuresa 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.
Specifications:
| Focal Length & Maximum Aperture |
Magnification: 1.4x |
| Lens Construction |
7 elements in 3 groups |
| Max. Diameter x Length |
2.8 x 1.1 in. / 72.0 x 27.2mm |
| Weight |
7.9 oz. / 225g |
| Coating |
Coatings minimize ghosting and flare, with new Fluorine coating |
