hooting MWA in midwater, keep in mind the ambient light from above on the subject. This is more important for vertical/portrait shots, and you may need to slightly increase the power on the lower strobe to compensate. Plain, blue water backgrounds can be dull, but surface texture, sun beams or sun bursts can liven it up. SETTINGS: Nikon D300, Tokina 10-17mm, 1/160s, f8, ISO200. Nexus mini dome port.