I'm going to take pictures at a Dog Walk later this month. My problem is that the humans' legs and other dogs get in the way of a good picture. I could try to get a clean (no people) picture of the area before the walk starts, but it would have to be at THE EXACT ANGLE as the pictures I end up taking, right? How do I get a clean picture of just the dogs I'm focusing on? I saw a picture of a co-photographer at a dog walk many years ago. His beautiful picture of dogs has haunted me. Mine had human legs and knees in it. lol