The release of the Canon EOS 5D Mark II (now succeeded by the EOS 5D Mark IV) 12 years ago transformed the moviemaking landscape for many people. It was the first full-frame DSLR to feature Full HD video capture. This landmark camera enabled filmmakers to achieve a cinematic look without a cinematic budget.
Today, full-frame cameras like the Canon EOS R5 mirrorless camera and EOS-1D X Mark III DSLR are the most capable cameras of their types for shooting stills. But they are also packed with impressive video specs, with features such as RAW capture, 4K resolution video (up to 8K in the case of the former) and high frame rates.
If you are a hybrid shooter who demands a stills and video camera in one small package, then a full-frame mirrorless camera or DSLR is perfect for you. But if you focus exclusively on recording moving images, then a dedicated Cinema EOS camera has significant advantages.