Canon has announced an upcoming service update to its EOS-1D C professional DSLR that will add 25 fps 4K video recording. The camera currently captures 4096 x 2160p resolution videos at up to 24p without downscaling, from an APS-H crop of its 18MP full-frame sensor. In a service advisory,the company promises more information about this update in April 2013 for US EOS-ID C owners. There is currently no information on the European website. There is currently no information on the European website.
News: Digital Photography Review (dpreview.com)