Originally posted by slip Does the 50-150mm autofocus perform as well as the 70 -200mm as far as autofocus?
Sorry can't help, but I see you have a DA50-135 f2,8, so I presume the AF on that is not fast enough? I don't do indoor sports, but outdoor (lots of sunshine) at the same sort of distances, and use 2 cameras, one with a DA16-45 and the other with my 55-300, but mostly between 150 and 200mm. Seeing that you also have a 17-70mm, I'd think of going the two body way, one with the 70-200 and the other with te 17-70...
EDIT: The K-30 should do the job, and with recent announcements, the price should be very good shortly..