DJI occasionally knocks us sideways with cutting-edge innovation à la the Ronin 4D, but it's usually just refining existing products to stay ahead of rivals. That applies to the new RS4 and RS4 Pro ...
At first, video-capable DSLRs were widely viewed as a gimmick. Low resolution, manual focusing, lousy audio, and short clip lengths conspired to make the feature useful mostly for short 1-person ...