I suppose it's just panning really. Not like cars in that you're panning vertically as well as horizontally and there's only a loosely defined race line.whats your technique? Fill flash? Panning...Zooming out as they hurtle towards you?
Crackers dod, as always. I'm curious, which lens?
You made your mind up what you're going for yet?
I think comparing the two, in my eyes they're going to be on a par with each other quality wise. It's just whether the extra stop is worth the extra cost. That's what's probably going to sway me.