LensCoat for the Sony FE 100-400mm f/4.5-5.6 GM OSS LensCoat Sony 100-400 F4/5.6 GM 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 Sony 100-400 F4/5.6 features a clear plastic Windows over the AF/OS controls. *This cover comes with an optional piece for the lens is zoomed out to 400mm which can be quickly and easily put on and removed with its Velcro attachment as seen in the picture