I was at the Equine Affaire the weekend before last and was attempting to take photos with my Canon Rebel in the indoor arenas, and it just....wasn't happening. No matter how steady I held the camera, the pictures almost always turned out blurry. My pictures are rarely blurry in outdoor arenas, but inside, they're often a disaster. Is there a type of lens or flash I can get that will help?
Examples of photos taken outdoors: