But nowadays dah senang, cameras mostly wi-fi enabled and you can share immediately. You can benefit a lot from having good buoyancy - better trim means you are less invasive / intruding to the marine species around you or you’re shooting/recording; you wouldn’t need to kick so much to move; you consume less air; you are also less likely to be nauseous after your dives. It also allows for you to manage an emergency situation better.