Split-shot Photography with Olympus TG 5 or 6?

by Amanda
(Australia)

I want to try split-shot photography with my Olympus TG5 camera in a PT-058 housing. Can anyone advise? Will my TG5 be able to take pictures half in and half out of the water successfully? I know I need a dome lens. Which one would be best? I am concerned about getting good depth of field with my camera. Any advice would be appreciated.