Canon Extender EF 2X III
The Extender EF 2X III from Canon is designed for select Canon EF mount L-series telephoto lenses. It increases the focal length of a lens by a factor of 2x while still delivering superb image quality. This converter 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. The Extender EF 2x III features nine optical elements in five groups, ensuring improved optical performance.
Specifications
| Magnification | 2.0x |
| Lens Elements/Groups | 9/5 |
| Light Loss | 2 stops |
| Length | 52.7 mm |
| Diameter | 72.0 mm |
| Weight | 325 g |
