LensCoat Lens Covers... Moving a big white (or black) lens near skittish wildlife is like waving your arms a sure way to flush your subject and ruin what could be a once-in-a-lifetime photo opportunity. LensCoat Lens Covers mask your 200 mm to 600 mm lens, giving you a better chance at getting the shot. LensCoat Lens Covers are manufactured from 100% closed-cell neoprene, offering protection from bumps, jars and nicks, with a camouflage-pattern fabric cover. LensCoat Lens Covers also provide a thermal barrier, protecting your hands from cold lenses in lower temperatures. They are easy to install and remove, leaving no residue on the lens. And LensCoat lens covers are waterproof, providing protection in harsh conditions. Other features include a clear, flexible UV-PVC window over the AF/IS/VR controls and the distance-scale window. The LensCoat also features custom holes that reveal the red-dot for easy alignment to the camera body without removing the cover. LensCoat for the Canon 400 f/5.6: 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 LensCoat 400 has small hole on the last segment lines up with the red dot indictor, making it easy to quickly line up your lens with camera mount even with the cover installed. Please note that the The LensCoat