We have been successfully using our Blue Robotics 2 and Z-Cam Cinema camera. Both on a Natural History series episode and also for our own filming. Here is a short video from last week taken in around 50 meters depth.
I custom built the cargo bay and worked with an engineer to build the camera housing. The camera control runs through the ROV network to the surface. (Not shown in image below is the 2x 10 000 lumin lights I used to light up the scene) So far everything is running perfectly. Now to get it to 150 m.