Dogs at Play

They look ferocious but they're really just playing.  I've been testing out the new Canon 1D Mark IV capturing my dog and her friends in action.  I'm still playing with various settings but so far the camera does an outstanding job.  The dogs change direction very quickly and so it's hard keeping up.  I've been experimenting between using all 45 focus points and letting the camera choose and lock onto the action versus a single focus point with assist from surrounding points.  I still need to play and at least for dogs in action, haven't settled on a preference yet.  Nonetheless, it's still fun to capture the action.