Choose from a wide selection of underwater strobes and flashes, as well as underwater focus lights from various manufacturers. Adding light is the single most important improvement you can make to you underwater photography or video setup.
External underwater Strobe Lights, also known as an underwater flash, are very important in underwater photography. There is no better way to increase the quality of your underwater photography than by adding strobes. Using strobes will help bring out the brilliant colours of the ocean in your images. They allow you to reduce backscatter, and enable you to try different lighting options. Strobes range in power and quality and it is always recommended that you get the most powerful strobes in your budget range.
Underwater Focus Lights aren't necessary in all situations, but are highly recommended. Digital cameras, both compact and DSLR, focus by detecting contrast at the focusing point. Water absorbs light quickly, so using a focus light allows the camera to see the contrast and quickly focus. Using a focus light is critical for shooting at night (it also serves as a primary dive light), for shooting super-macro and often times for shooting macro. Many experienced photographers use focus lights while shooting wide-angle into bright sunlight as well.
The Scuba Doctor is one of the largest dive retailers and mail order suppliers in Australia of new Underwater Strobes and Underwater Focus Lights. The best combination of quality services, vast selection, knowledgeable staff and everyday low pricing.