LensCoat for the Nikon 600 f4 AFS II Realtree Max4 HD. LensCoat N600 telephoto lens cover offers your valuable equipment some protection from scrapes and bumps, preserving its resale value. The LensCoat N600 features a clear plastic windows over the auto focus controls and also the distance scale. A small hole on the last segment lines up with the white dot indictor, making it easy to quickly line up your lens with camera mount even with the cover installed.