He also develops an underwater flash and a remote control for deep waters using an electromagnet .
1893 -- Louis Boutan takes underwater pictures in Banyuls - sur - Mer while diving using a surface supplied hard hat diving gear .
Louis Boutan also develops an underwater flash and a remote control for deep waters using an electromagnet .
1893 -- Louis Boutan takes underwater pictures in Banyuls - sur - Mer while diving using a surface supplied hard hat diving gear .