A dslr / mirrorslapper is a stills camera. The very core of its design is sub-optimal for video. If you expect a 5d IV to be a mirrorless camera things would be somewhat different. But even thrn it males all srnse in the world to abpid unneeded and unwanted "convergence". sony - a much mord video-oriented corporation than Canon ever eas or will be - has fully understood this. And offers even their mirrorless cams on 2 stills-optimized versions A7 II and A7R II and only one video-optimized version A7S (II) .. At a higher price. Go figure!unfocused said:Absolutely. This is one of the silliest myths around. What do people think digital cameras are anyway? They are video cameras at their very core. The incremental cost, if any, is small and more than offset by the increased sales. The "I-want-a-stills-only-camera" crowd needs to just get over it. The ship has sailed.3kramd5 said:...if canon developed a video-only cam and an equivalent stills-only cam, each with different electrical designs, the increased NRE and decreased volume would spike the cost over a model with both.