DXOMark rates GH4 at 13 stops dynamic range - 1 stop better than 5D Mark III In: Cameras Posted June 15, 2014 well i think its absolutely great what sony comes up with on paper. no other company brings out cameras with such amazing specs in the smallest possible bodies. i often like to compare Sony with RED. not that their cameras are comparable in any way, but both companies seem to have the exact same goal of pushing the limits of whats possible with todays cameras and always being the first of introducing new standards and features. on the other hand theres Panasonic, who would never come out with a camera that isnt rock solid in its performance. FF 4K camera that overheats after 30min of recording? it would never see the light of day if Panasonic built it. its really up to you what you choose, but id always go with a rock solid camera. just like i would always choose an Alexa over an Epic. Talking about rock solid performance please do not forget that GH2 had a dreadful battery life and GH3's viewfinder and screen was practically unusable for many. GH4 has come a long way and it really looks like the first DSLR(mirrorless) truly made for video. However, there are many reports about an audio bug regarding GH4... Overheating has been a big problem on certain Sony cameras so far, let's see about A7s, but I wouldn't exactly call Panasonic's GH line performance rock solid. You are right about choosing a rock solid camera and that's why companies still offer professional video cameras and not only cheaper hybrid alternatives.