Cleaning your Sensor This article applies to all Nikon-based digital SLR bodies (D1, D1h, D1x, D2h, D2hs, D2x, D2xs, D3, D3s, D3x, D40, D40x, D50, D60, D70, D70s, D80, D90, D100, D200, D300, D300s, D700, D3000, D3100, D5000, D5100, D7000, S1, S2, S3, S5 Pro, 14n, 14nx, and SLR/n). It probably also applies to other DSLRs, as well, but since I don't test them I won't speak to applicability of this information for them.
The basics of setting up Nikon's Wireless "Creative Lighting System" using a Nikon D90 and an SB800. With some examples of off-camera flash photos with and without the orbis™ ring flash. The pop-up flash on the D70, D70S, D80, D90, D200, D300 and D700 can all be used to fire Nikon flashes wirelessly, check your manual for details. All of these have a similar setup screen that you'll see in this video, except the D70 and D80.