Nikon D3 Digital SLR Camera The actual D3 will be Nikon's primary digicam using a sensor the dimensions of 35mm film. This can be also known as 'Full Frame', or perhaps FF, yet Nikon telephone calls that FOREIGN EXCHANGE, to distinguish that from your APS-C sized DX formatting. FOREIGN EXCHANGE and DX each possess their very own advantages, as well as crucial that you realize and that is right for a person previous to picking. Nikon D3 Digital SLR Camera