Official Canon EOS-1D X Samples
Canon has posted half a dozen full-resolution sample images and a sample movie captured with the full-frame Canon EOS-1D X digital SLR camera. Most of the sample photos were taken at a sensitivity setting of ISO 800/30°, with one ISO 100/21° and one ISO 1600/33° shot also being available for download. The lenses used to shoot the samples include the Canon EF135mm f/2L USM, EF 600mm f/4L IS II USM and the EF 400mm f/2.8L IS II USM. Unlike the stills, which are presented in their full 18-megapixel glory (albeit with strong JPEG compression), the sample video has been downsized for the Web and is thus not representative of the quality of a movie shot in Full HD mode.
Website: Canon EOS-1D X Sample Images & Movie