LensCoat® telephoto lens covers offers your valuable equipment some protection from scrapes and bumps, preserving its resale value. It also help break up the shape of your lens, making it less noticeable to wildlife. The neoprene LensCoat acts as a thermal barrier making the lens more comfortable to handle in hot and cold tempertures. The LensCoat® Fuji XF 600 features a clear plastic windows over the auto focus and Image Stabilization controls.