Please note this model is now discontinued and a new version is now available nikon d4 digital slr camera bodythe nikon d3s is the younger brother to the nikon d3 bringing increased functionality to the table with improved iso and fx format hd movies pitched as the perfect camera for professional news sports wildlife photographers the extraordinary low light photography options of the nikon d3s gives photographers a seven stop iso range of 200 12 800 with three additional boost level