If you’re a Nikon DSLR owner, you’re in luck. The company has today offered a firmware update for lots of their cameras–and this one is specifically about distortion control. The firmware updates the lens profiles to tell the processor exactly how to react to certain images from certain lenses. The data is meant to correct barrel and pincushion distortion during shooting and editing.
Version 1.09 is available for Nikon D4, D800(E), D90, D7000, D5100, D5000, D3200, and D3100 cameras.
Firmware download links: Mac | Windows
Installation instructions: Mac | Windows
Distortion control can usually be found in the green camera menu of your DSLR–but consult your manual just in case.
Via Nikon Rumors