George D. said:
If any couple wants to shoot it's wedding like a Hollywood production please rent EOS C.
Dude! you made me laugh, because it is true.
At this time I see no one reason for me to upgrade my 5D3 and 1DX.
4K is not the aspect of video that would make my work better and surely is not even within the first 10 factors I think 5D3 weakest point from a video perspective. All these weaknesses , my opinion, are better handled by the EOS C100.
For me 4K is just a "want" not "need" feature. 4 years from now - who knows? But today, no way. I simply have no time or space to handle big files with my current computer. That is a post production nightmare. Stabilization alone would drive me crazy.
Frankly, I have been wondering how long does it take to stabilize a 4min 4K video in Davinci or Premiere? And if you shoot a wedding every two weeks, would you shoot it with a 4K entirely? I don't know, I am just wondering.
Just allow 4K through HDMI or SDI so I can record it for future use (if needed - and that is a big IF) and I am good.
Back to the 5D4, I would upgrade only if they improve at least one stop the sync speed. I am a getting older flash photographer and dragging big flashes all over the place is painful.
Other than that, I will skip. It is not worth my 3.5K My current gear can handle whatever I need.
On the other hand, people who are currently using a crop sensor would find these "little" improvement quite attractive. I wouldn't be surprised if someone would buy a 5D4 (or other camera) vs 5D3 just for the sake of 4K, even if he doesn't really know if he needs it or not and sales pitch would convince him even more.
"Professionalism" in photography doesn't belong to the connected alone like it used to be. Youtube would make sure of that.
The market is changing as many hobbyists buy 3.5K camera just because they can afford it, and they would show off that their camera can do 4K.
Believe me:"they are loud".
Does canon want to lose these customers? It is up to them.