https://www.techeblog.com/canon-eos-1d-c-is-first-dslr-capable-of-recording-4k-video/
Canon EOS-1D C is First DSLR Capable of Recording 4K Video - TechEBlog
Apr 16, 2012 - For photographers who need a more video-centric DSLR and already have the Canon EOS 5D Mark III, the EOS-1D C is your answer. It's the company's first DSLR
canon eos 1d c