There are more than a few reports of noise oddities such as fixed pattern noise

My regular footage hasn't shown significant signs of this, but it's there if you look for it in the right scenes.

It's interesting to see how the top left which is pushed by a aggressively bad curve to show whats going on under the radar.

Continual testing of the blackmagic 4k

full writuep and other tests at mediahalo.com/articles/bmc4k/?vim

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…