LensCoat for the Pentax D fa 150-450mm f/4. 5-5. 6 DC AW LensCoat Pentax D fa 150-450mm f/4. 5-5. 6 DC AW 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 Pentax D fa 150-450mm f/4. 5-5. 6 DC AW features a clear plastic Windows over the auto focus controls *This cover comes with an optional piece for the lens is zoomed out to 450mm which can be quickly and easily put on and removed with its Velcro attachment as seen in the picture.