Daily Snap: Yep, more track

More track today. Only had a few runners to worry about, so I tried something a little different in between my races. Here's a shot with the 400mm and 2x teleconverter -- an effective 800mm focal length shot.

Gear: Canon 5D Mark III; Canon 400mm f/2.8 IS + Canon 2x (Version II) teleconverter
Settings: f/8, 1,600th of a second, ISO 1600, 800mm

Pleasantly surprised with autofocus speed with the 2x. Keeper rate of maybe one in three or four, which is more than enough when you're spraying.

Fired off a few at the minimum aperture of f/5.6 as well, just for fun. Keeper rate during pole vault was significantly lower. But this one below turned out pretty darn sharp, which blows my mind. Depth of field with 800mm at f/5.6 with a subject around 30 feet away is about 2 inches.