Extender EF 1.4x III
Extender EF 1.4x III can multiply a lens' focal length# by 1.4x. A very useful telephoto tool for professionals and advanced amateurs as it extends the reach of lens instantly. The 7 elements in 3 groups optical design, when used with the new-generation large-aperture telephoto and super telephoto L lenses†, can vastly minimize chromatic aberration and color blurring around subject edges that commonly caused by magnification to ensure high quality images. A microcomputer is added to ensure accurate data transmission between the lens and the camera. When used with the new-generation telephoto and super telephoto L lenses†, more precise autofocusing can be achieved. An enhanced barrel design, a dust and water resistance construction▲ and the application of fluorine coating to the fore and rear lens surfaces to repel water and oil effectively can ensure robust and reliable performance even in adverse environments.
#†Please refer to "Features" ▲Use with EOS-1D Series, EOS-1V and dust-and-water proof lens, however it is not recommended for use under rain.
| Angle of View (Diagonal) | - |
|---|---|
| Lens Construction | 7 Elements in 3 Group |
| Fluorite (piece) | - |
| DO Lens (Piece) | - |
| Super UD Lens (Piece) | - |
| UD Lens (Piece) | - |
| Aspherical Lens (Piece) | - |
| SWC (Subwavelength Structure Coating) | - |
| Fluorine Coating | Yes |
| No. of Diaphragm Blades | - |
| Minimum Aperture | - |
| Minimum Focusing Distance (m) | - |
| Maximum Magnification (x) | - |
| Drive System | - |
| Full Time Manual | - |
| Power Focus | - |
| Image Stabilizer Effectiveness | - |
| Image Stabilizer Mode | - |
| Dust and Water Resistance | Support |
| Filter Diameter | - |
| Length x Max. Diameter (mm) | 27.2 x 72 |
| Weight (g) | 225 |
Compatible Lenses
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^ Discontinued model |
