D5100 Focus for Sports
For this purpose get a good video camera. The relatively small sensor (which is all you need for HD video) gives you wider dof, making focus less critical, and the auto focus will be much better. HDSLR's are not good for sports video. The variable-speed power zoom on video cameras are really useful for sports too.
|Greenwich Village Winter by blucoyote|
from Your City - Snow
|Rifugio Locatelli & the Tre Cime di Lavaredo by James Rushforth|
from Astro Landscape
|Smokin' by Kukla|
|Ford GT by Jose Olivares|
from F is for...