Nikon D4: 720/60p, H.264 at 10mbps. This is why you want an awesome display.
Note: Before, Vimeo embeds didn’t always work, so I vowed not to embed anymore. Today is the first embed since June 2011. Vimeo has an HTML5 player and the video above is an HTML5 embed, so I’m hoping this will work reliably, especially for non-Flash devices like iPads and iPhones.