I just recently purchased this lens for my E500 (hoping to upgrade to the E3 by Feb). I mainly wanted it for indoor sports. There were many user reviews that specifically said it worked well for indoor sports. However, when I tested it out on my daughter's basketball game yesterday, any shot that involved movement was blurry. Do I need to update my firmware? Does this lens not work on the 500? Am I doing something wrong? Any help is greatly appreciated.