HiI am thinking of buying this lens instead of the 2.8 version. Mostly because it is lighter. Does anyone use extenders 1.4x or 2.0x with this lens.Thanks Denis[a href=\"index.php?act=findpost&pid=127187\"][{POST_SNAPBACK}][/a]
I've used it with the 1.4 extender (on a 1D2 body) and I'm very pleased with the IQ. If you use it with the 2.0x extender, you'll loose the auto-focus unless you have a 1D body.[a href=\"index.php?act=findpost&pid=127233\"][{POST_SNAPBACK}][/a]