Nikon will possibly upgrade their high end tele-lenses with fluorine coating. The list of the lenses are:-
- Nikkor 200mm f/2G ED VR II
- Nikkor 300mm f/2.8G ED VR II
- Nikkor 500mm f/4G ED VR
- Nikkor 600mm f/4G ED VR
- Nikkor 200-400mm f/4G ED VR II
The fluorine coating over the external surface of the lens keep your lens safe for water, dust ..and kids color attack.