My husband tried to take pictures of my horse and I competing in a hunter derby under the lights, but all that was in focus were the jumps. We have no idea what settings to use; he used the sports setting. The lens used was the Nikon DX AF-S NIKKOR 55-300mm 1:4.5-5.g GED. What settings does the camera need to be on in order to have both the jump and the horse in focus? Thanks!