> >
> >
> > Any other sports photographers out there who have experience (good or bad)
> > with off-brand TCs?
> >
>
> Pattie,
>
> I have been a sports photojournalist for several years now. I have tried several
> of the aftermarket TC's. I now own a Canon 1.4X and a Canon 2X. I gave up on the
> other TC's. I had several problems with either the quality of the image using
> the aftermarket TC, or I had problems with the electronics via the lens.
> (aperture and or autofocus info not passed through TC).
>
I'm not a sports photographer but do have 2 off brand TCs.
The comment above applies to the TCs that were available at the time, since
then
Kenko, Tamron and Sigma have released Pro300, SP and EX TCs respectively
which are optically better than what was available before and also communicate
correctly with the electronics. The Sigma also has a protruding front element
which limits which lenses it is compatible with (different protrusion so
different
list to the Canon).
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