Split Shot Technique: Undersea Images

 Over-Under Underwater Photo Tips:

    * Use a small aperture to get the background and underwater parts in focus, preferable F16. Bump up your ISO or lower the shutter speed as needed.
    * Exposure for the top-side portion of the photo
    * Since the virtual image a camera focuses on is further away with a large dome port, larger dome ports will make it easier to acheive focus in the areas underwater and above water. With a smaller dome port, you’ll need a smaller aperture to get above and below water in focus.
    * Focus on the subject that is underwater, dont focus on the above-water subject.
    * Shoot in calm, clear water. Shoot on a sunny day, and use your strobes to light up the underwater subject if necessary. Try to shoot with the sun behind you to minimize the exposure difference between the over and under sections.
    * If you only have an acrylic dome port, use the advice below to help your port shed water. Glass dome ports shed water easier.
  
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