Canon's new 5D Mark IV succeeds the Mark III with more of everything. But most importantly, it records 4K video, something mirrorless cameras like Panasonic's GH4 have had for years and Sony's Alpha-series cameras now come standard with. However, when you import Full HD MOV videos from Canon 5D Mark IV to iMovie, you will find that the iMovie can not play it. As we all know, MOV is said to be supported by iMovie , why iMovie doesn't accept Canon 5D Mark IV MOV files? Actually, the highly compressed H.264 MOV files from 5D MK 4 is good for editing in iMovie. To get iMovie working beautifully with 5D Mark IV video files, the best method is to transcode 5D Mark IV MOV to iMovie natively supports. The following guide will detail you how to convert 5D Mark IV MOV to iMovie friendly file type. Canon 5D Mark IV Video recording Size and Format: The quick workaround is to use the easy-to-use yet professional app called Dimo Video Converter Ultimate f