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What settings do you plan to us for macro? Are you trying for video or stills? I hope to try some Macro during our upcoming trip but it is Cozumel and well you know what the current can do there. Focus will be a killer. I am thinking 4k video then grabbing stills from that. Or use burst to get multiple shots and hope one is in focus.Bought a GoPro 4 a couple of years ago, found it fairly useless for macro without lights, and have just bought lights and am finally getting around to actually using it.