Auto white balance is fantastic, even in tricky mixed lighting conditions. Autofocus performance is stellar. Servo mode autofocus tracks moving subjects flawlessly. I've yet to dive into video performance, but the few tests I've done have been very encouraging. My only small gripe is that 4K HD video has a 1.74 crop factor, but this isn't a major factor for me.

So far I love this camera. I have been using it for about a month now and taken it out for a few intensive shoots. It has not let me down. The focusing is much improved over the MK III which was my main motivation for getting this. It does have a few features that I have not and probably will never use like the Wifi but I didn't buy it for that. I didn't buy it for video so I cannot evaluate that but I think that if you are going to shoot video, get a video camera like their C 100 and shoot video. It does suck the life out of batteries much quicker than the MK III or MK II so I would suggest getting the battery grip and some spares.

simply incredible image quality and AF.

I'm a professional event photographer who was long overdue for an upgrade from my 5DM2. Having skipped the 5DM3, this camera is a substantial upgrade for me in every way. The biggest improvement for my photography has been auto focus, ability to shoot at higher ISOs, and dynamic range. My 5DM2 is my backup and I now hate using it due to the poor LCD and lack of touch screen really bother me now. I should also mention that I rented this camera and shot a wedding with it before buying it. With so many places to rent pro gear, it's crazy to buy any photo gear before actually using it in the real world. In case you can't tell, I am very pleased with this camera.

The camera speaks for itself. I love the MIC, case and accessory kit that came with it, it's all I need.

I love the Zeetech accessory kit, It works flawlessly.

Arrived 1 week late, but the camera was in perfect condition, 4 stars.

The image quality of the 5D mark 4 is out of this world.