It was time to go for a second trip with the RX100 Mark IV
I decided last minute to use the UWL-H100 LD however I managed to forget the M67-LD converter so ended up taking footage holding the wet lens with my left hand.
This created some flare issues in some scenes anyway judge for yourself.
I used the Picture Profile PP6 modified with some small changes around color matrix (I used the Pro setting) and some increased saturation.
As always the RX100 cannot white balance underwater so I used a filter (deeproof), this gives a magenta tinge and sometime the water looked a bit purple.
I have two versions of this clip the first one uncorrected and the second where I tried to remove the purple water. Look for yourself which one is best.
First version with minimal to no editing is here
The second version has some colour correction mostly to remove the cast but I have also done some minimal correction in some scenes at the surface shot without filter.
The other settings were shutter speed 1/50 fixed, Auto ISO with max ISO set to 800, auto white balance.
Generally I am very happy with the RX100 however the snorkeling footage was affected by one episode of fogging of the glass port. This was during a dolphin trip so very disappointing. The camera got extremely hot and I think the fact I was holding my hand close to the port to hold the wetlens created the problem as this had never occurred before.
Upon reflection I think I will go back to the UWL-100 M67 type two as the colours I get with the magic filter were superior in my opinion and more natural.
For those wondering about the dugong dugong it was dark as I was free-diving to 12 meters with the camera and the wet lens hand held so not the easiest job.
Let me know which version of the video you prefer!