Here is the 3D version Dave, vimeo doesn't do it any justice. I have had been able to watch a few times on the big screen with a 2K 3D projector and it looks bloody amazing!
Thanks guys, it was a pretty special shoot were everything just seamed to go right and that last shot was just super lucky in so many ways! We shot so much and have so much content it is unbelievable that mother and calf was just so special. On a few days we had to call it quits due to filling cards (512 GB) and the whales were still showing off for us.
You are correct Dave, no magenta issues. Pawel is a very clever chap and he has designed and manufactured two types of filter, one which is really strong and stops 2 stops of light but makes the blues absolutely nuclear and one which I used the whole time which only stops 1/2 a stop but solves the magenta issue as far as I can tell. What really spun me out was the fact that we were shooting 2 3D rigs which a team of three, I was able to be in the water and shooting within seconds and we didn't have a single technical issue in 2 weeks.