Practicing splash photography in the studio last night. I used a 14 gallon aquarium from Petsmart to contain the water. 45" Westcott 5-in-1 reflector with black side facing the back of the aquarium and about two feet back from the aquarium was used as a backdrop. Nikon D300 with Sigma 105mm F2.8 EX DG Macro lens. Manual exposure mode, F7.1, 1/250th second shutter speed, ISO 400, spot metering. Camera mounted on tripod. Shutter triggered with Nikon cable release. Shot tethered into Lightroom 4 to view results of each splash attempt.
Fill light(s) - Two Nikon SB900 speedlights one placed on each side of aquarium aimed at center of each side. Manual mode @ 1/128th power. Bare (no diffuser) with small Rogue Flashbender on each flash to flag off the light on the side facing the camera in order to avoid lens flare. An additional SB800 was placed on a boom over the aquarium aimed at the top of the water line to illuminate the splash above water level. That flash was in manual mode # 1/64th power, bare (no diffuser). Flashes were triggered with PocketWizard Plus II on flashes and PocketWizard Flex-TT5 on camera.