Originally Posted by
Paulo P
I'll try that at Brands for Time attack in a couple of weeks thanks

I've got a sigma and I have been struggling with focusing on objects moving quickly.
but generally the cars all pass the same point, so just set your focus distance around there, dont try and keep them in focus over a long distance of movement (does that make sense?)
http://www.facebook.com/album.php?ai...2&id=514510579
some strange photos ive taken