EOS 60D (using autofocus), 800mm f/5.6 + 1.4x (1120mm (1792mm equivalent)) @ f/8, 1/400s, ISO 100
How is this possible? The 60D doesn't support AF at f/8, right?
Here's a little-known secret: While no bodies can autofocus using phase AF beyond f/8, all current bodies support AF in LiveView at any aperture as long as there's enough light to get focus lock. The key is to use a cable release and set your shutter to AF/AE lock. For back-button focus types (like myself), this is something that needs to be changed to work, but for others, the camera is set that way by default.
Once set, put your camera and f/8 lens + extender combination on a tripod. Turn on LiveView and move the AF point to the desired location (the eagle's eye in the example above), then use the shutter button on your cable release to AF and take the shot.