Yes maybe, or they used F-Log2 to get extra dynamic range but it looks noisier..
https://www.youtube.com/watch?v=Zd1j-D01iFc&t=8s
By the way, Gerald Undone recommands to de-noise the footage later in post. He got good results with DaVinci Resolve.
https://www.youtube.com/watch?v=RM8ejsR_-MQ
Pretty good footage with better narrative...
First watch on my tablet I didn't notice anything but later on my desktop monitor I found weird noise in the shadows. What do you think guys ?