The D750 is Nikon's latest FX format camera, which borrows features from the D810 and marries them with a 24MP sensor, offering a faster frame-rate than any non-professional full-frame Nikon DSLR since the D700. Aimed squarely at enthusiasts and full-frame upgraders the D750 boasts a comprehensive video and still photography specification which includes a tilting rear LCD screen and (on paper) an improved version of the 51-point AF system found in the D810. We've been using a pre-production camera for a few days - click through for our first impressions.