Today, Nikon USA made an announcement about dust issue of Nikon D600. Nikon USA promises to replace defective D600 cameras with a new D600 or an equivalent model if dust issue is not fixed.
Last year, we reported there would be a new firmware update for the Nikon D600 and Nikon D800. Now, on April 2, 2013, Nikon USA just released new firmware updates for the Nikon D600 and Nikon D800. See the detail below for firmware updates and download.