- 1.4x telephoto extender for multiplying focal length of Canon 135mm or longer lenses
- Fits all 135mm or longer fixed focal length lenses and some 70-200mm telephoto lenses
- Preserves autofocus on any EOS camera when combined with f/4 or faster lens
- Weather-resistant construction and improved anti-reflective surfaces in the barrel
- Measures 2.9 inches in diameter and 1.1 inches long; weighs 7.8 ounces
Both Canon extenders feature the same exceptional levels of water- and dust-resistance as are found in the company’s flagship professional-model EOS-1V AF SLR camera, and IS-type super-telephoto lenses, whichare equipped with an Image Stabilizer to correct for the effects of camera shake. The revamped optical systems employed in the new extenders realize even higher image quality than the previous Canon Extender EF1.4X and Extender EF2X models, launched in November 1988 and October 1987, respectively. Furthermore, the new extenders offer compatibility with the same EF telephoto lenses as the previous extenders.