Ray Flash Ring Flash Adapter for Nikon SB-800 Used on D300/D200/D80/D70/D50/D40 Unique lighting effect can be used for a variety of applications as a main light or fill-in Produces virtually no shadows on the front of the subject, with soft shadow around the edge Fits securely to the front of standard flash unit Contains no electronics or flashtubes -- no extra batteries needed! All normal flash operating functions and color temperature are maintained