Thinking on it, she should have brought one of her telephoto lenses in addition to the portrait 35mm, but it'll do if she could stay within the boundaries of the drill field. It was late afternoon, but there was still quite a lot of sun, so she set the focus to infinity, aperture to f/4, and shutter speed to 1/500th of a second. That should be fast enough to capture a good snapshot of the lance -- and herself -- in motion.