« on: April 09, 2013, 02:04:45 PM »
I hear that the Kenko maybe better than the Canon II, but not he Canon III. Anyway if your not sure you can always rent the Canon to compare and if you find that it's a real difference that you can't live with between the Canon and the Kenko then return it and keep (purchase) the other.The 1.4 DGX I bought was not quite as good as my Canon MK II, I bought it to use for f/8 AF on my 5D MK III. I particularly hoped to use it on my 100L and my 100-400L. It worked great on my 100-400mmL, but not at all on the 100L. The 100L needs a lot of AFMA, so it turning it off would have required totally manual focus which I did not want.
It went back so fast that I did not even keep the photos.