Product specifications coming soon
Rated 4 out of
Kenko 1.4x converter for Canon
"This converter is remarkably good optically, and it works with many Canon lenses that are not supported by the Canon converters. I use it primarily with the Canon 70-300 4-5.6 L on a 5D Mk III where it works - with full AF and IS - better than the Canon 100-400, except for the one stop loss in effective speed. The downside is that it does not work with all combinations of camera body and lens. For example, the Canon 40/2.8 used with this converter on a 5D3 results in an error signal and the camera refuses to operate. Same for the new 24-70/2.8 L II. The 50/1.8 II does not result in an error, but the combination continuously 'hunts' making AF impossible. One can, however, take a picture using manual focus with this combination. On a Canon 7D, all my lenses worked with the Kenko converter except for the 50/1.8 II. 7D AF was unpredictable with lens+converter having f/8 at the long end. Sometimes it worked and sometimes it didn't. My advice would be that prospective buyers should check that the converter works with the cameras and lenses intended prior to purchase. The Kenko instructions warn of incompatibilities with other Canon bodies and lenses as well but the details are not clear. EF-S lenses do not fit at all."
Date published: 2013-06-30