This is the ultimate Nikon camera with an FX, imaging sensor of 24.5 effective megapixels. This gives a resolution approaching medium format cameras. Capability of this camera is huge enlargements greater than 30 inch maximum dimension.
A camera such as this is extremely demanding of the lens performance due to the very high pixel density, so if you are spending big money on this camera you will also need to get the best quality lenses to match.
The ISO settings range from ISO 100 to 1,600 in steps of 1/3, or 1 EV, plus LO-0.3, LO-0.7, LO-1, HI-0.3, HI-0.7, HI-1 and HI-2.