The SB-400 is a compact, lightweight speedlight unit designed for individual wanting more power and coverage than offered by the camera's built-in flash. The easy-to-use SB-400 has a flash coverage as wide as 18mm on Nikon DX-format DSLRs and a versatile 2ft up to 66 ft shooting range. Its bounce abilities minimizes background shadows and diffuses light for a more pleasant result. Its fast 2.5 second recycling allows for continuous shooting without missing the opportune shot.