These were shot on a D800E, using a Leica 400mm f2.8 APO-Telyt and a 1.4x APO extender. I put a Leitax mount on the extender, which allowed me to mount the large 400mm APO. If was shot at f3.5 on the lens, giving a 560mm f4, shot at f4.8 or what ever the half stop between f4 and f5.6.
It took a few tries at throwing and fetching the bumper before I could get any in focus. This is a series at the 4.5fps the D800E shoots.