LensCoat for the Nikon 600 F4 AF i Realtree Max4. LensCoat N600 AF i telephoto lens cover offers your valuable equipment some protection from scrapes and bumps, preserving its resale value. It also helps break up the shape of your lens, making it less noticeable to wildlife. The LensCoat N600 features a clear plastic Windows over the auto focus controls and also the distance scale.