From a photographers point of view..were you using a digi cam? You have to raise your "iso" or use "sports" settings..
this goes for all you guys..The lens captures the shot faster almost freezing it..When you the lens open too much ur hand makes to much movement and that's the "blurr" you guys are seeing..Figured i'd throw that in there so you guys can gett a little photo edu..and good pics..hope that helps..peace