Canon EF 200-400mm f4 L IS USM Extender 1.4x Lens Front & Rear Lens Caps Lens Hood Original Case Excellent condition as brand new (only used ones ) The luxury-series Canon EF 200-400mm f/4L IS USM Extender 1.4x Lens is a high-performance super-telephoto lens versatile enough for wildlife and sports photography. Benefits Built-in 1.4x extender Up to four-stop Image Stabilizer Weather-sealed, magnesium-alloy construction Fast USM autofocus with Power Focus for EOS Movies Instinctive focus controls for enhanced handling