The size and weight of the Ikelite DS51 TTL Strobe make it the perfect choice for the traveling underwater photographer. The DS51's intensity and angle of coverage are comparable to any strobe in its class. The strobe can easily switch between TTL/Auto and any of the six manual power settings through a large, easy-to-turn dial on the rear of the strobe. A simple battery door is easy to remove and replace and provides a clear view of the o-ring seal. The strobe's battery compartment is independently sealed from the electronics preventing further damage in the event of a flood. When combined with a compatible Ikelite TTL system or film TTL system, the DS51 automatically adjusts brightness to provide perfect exposure whether you're shooting macro, portrait or wide angle.
The Strobe comes with a diffuser, waterproof bulkhead cap and silicone lubricant 1cc tube. The Strobe id depth rated to 300' (90 meters), the manual power modes in 6 1/2-stop increments with a color temperature 5700K and a guide number 17 m at ISO 100. The Strobes coverage angle 70° degrees without diffuser and 80° degrees with diffuser and recycles in 3.5 seconds or less. The DS51 accepts 4 AA cell alkaline, Li-ion, NiMH or NiCad batteries (not included) as a power supply. The unit measures 3.2" x 4.7" (81mm x 119mm), weighs 20oz (590g) with batteries and is neutrally buoyant in fresh water. Strobe comes with an owner's manual and is covered by a 12 month limited warranty.