With Canon 5D MIV, you can record your videos at a highest resolution of 4096 x 2160 at 29.97p, 24p, 23.98p fps and save in MPEG-4 and Motion JPEG formats. Canon 5D MIV's 4K is the common standard resolution in consumer video world.It is also a big step up from its predecessor Canon 5D MIII which has a max video resolution of 1920 x 1080 only. If you are thinking of upgrading your 5D MIII and shoot a lot of video, this is a big factor to consider in favor of 5D MIV.
One important factor that you need to take into consideration while shooting video at max resolution of 4K with Canon 5D MIV is that there is a crop factor of 1.74x which can make it difficult to achieve wide-angle clips.
Microphones, Speaker and Headphone Connections
Canon EOS 5D Mark IV has a built-in Stereo microphone and a Mono speaker. Canon 5D MIV also has a port for an
external microphone and a
headphone port for connecting external headphones which make Canon 5D MIV a very suitable camera high quality videography.
If you are getting into videography and want to know what are the must-have video accessories for your camera, read our article:
Essential Videography / Filmmaking Accessories for your Camera
4K Photo Mode
Utilizing its 4K Video recording abilities in a creative way, Canon 5D MIV sports a 4K Photo Mode where you can capture 8 MP photos from 4K videos.
Using a software such as Adobe Lightroom on your PC or in-camera function, you can review the 4K video frame by frame and extract the image that you like the most.