Canon Teleconverter EF 1.4x III
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.
Supplied accessories: Lens cap - Rear lens cap
| Lens type | Teleconverter |
| Max Format size | 35mm FF |
| Lens mount | Canon EF |
| Elements | 7 |
| Groups | 3 |
| Full time manual | N/A |
| Weight | 222 g (0.49 lb) |
| Diameter | 72 mm (2.83″) |
| Length | 27 mm (1.06″) |
| Materials | Metal barrel, metal mount |
| Sealing | Yes |
| Colour | White |