Jan 29, 2006, 07:44
The one you want is the Kenko Pro 300 DG. Do not get the cheaper model. This one is about US$100 less than the Canon.
The Kenko Pro is more versatile than the Canon in that it can be used on more lenses - the front element sticks out less than Canon's.
I've heard AF is not a problem, but of course you won't get AF if your lens is slower than f/4, unless you are using a Canon pro-level D/SLR. You lose a stop of light with the teleconverter, so your f/5.6 lens becomes an f/8 effectively, and AF won't work.
The Kenko Pro is more versatile than the Canon in that it can be used on more lenses - the front element sticks out less than Canon's.
I've heard AF is not a problem, but of course you won't get AF if your lens is slower than f/4, unless you are using a Canon pro-level D/SLR. You lose a stop of light with the teleconverter, so your f/5.6 lens becomes an f/8 effectively, and AF won't work.
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