LensCoatA(R) for the Tamron 200-500 LensCoatA(R) Tamron 200-500 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 LensCoatA(R) Tamron 200-500 features a clear plastic windows over the auto focus controls and also the distance scale. Updated 2/1/12