I'm planning to buy a Divevolk SeaTouch 4 Max for my family to share on an upcoming trip to Bonaire. We will be using it for general and artistic photos and videos (my wife is an accomplished photographer on land), and I am definitely planning on purchasing a kit with the red filter. My questions are these: Should I add a light to the kit? Are there any other must-haves to enjoy the system (wide angle, etc)?