I'm using a DP4 for my BMPCC and 5D MarkIII underwater housing with Nauticam NA-DP4. DP4 brings high quality images and high levels of contrast with appropriate colour ranges. I'm satisfied with its accurate focus picking which is very helpful on sunny days and under water. Now I'm seriously considering to buy an OLED field monitor when I can afford to buy it.
DP4, Black Magic Pocket Cinema, Canon 5D Mark III