The D700 looks to be a bit of a cross between the full-frame (FX format) D3 and the DX-format D300The D700 will also boast some of the durability characteristics of the D3, such as the magnesium alloy outside and dust and weather sealing. The 150,000-cycle shutter and dust prevention system come from the D300. Other features it inherits from both sides of the family include the 3-inch LCD, two live-view shooting modes, a 51-point AF system, and 3D Matrix metering technology