48/50/60p data rate much lower than 24p/1080p

[jonnyginese]

Hey guys, I'm wondering if i'm doing something wrong with this.

I've followed the guide in the sticky but the data rate it records won't really go above about 79-82mb/sec. At normal 1080p 24p RAW my data rate is between 85-110mb/sec on the Komputerbay 64gb card i have.

Is there some key setting i may have missed? Or is this just how the camera operates.