Especially when used with large aperture lenses, the EOS 6D camera's full-frame sensor offers a tremendous degree of creative control over depth-of-field, helping users to achieve pro-quality cinematic effects in Full HD video recordings.

ENGADGET: Canon unveils EOS 6D DSLR: full frame sensor and WiFi for $2,099 in December

The much larger sensor and superior processing gives you massively better image quality, they're much faster (with little or no lag) so better for action, there's a lot more creative control over things like depth of field, the option to change lenses, add flashguns etc add to creative possibilities and also increase image quality.

BBC: Tips for picking the right camera