Canon EF 100-400mm f/4.5-5.6L IS II USM Lens for Canon SLR Cameras + 3pc Filter Kit + Lens Hood + Deluxe Lens Pouch + Cap Keeper + Lens Cleaning Pen Accessory Bundle Kit Compact, high performance L-series super-telephoto zoom makes it ideal for sports and wildlife photography Rotation-type zoom ring allows for more precise composition and excellent balance when handholding Improved zoom torque adjustment ring allows easy setting of zoom tension New Air Sphere Coating (ASC) helps to significantly reduce backlit flaring and ghosting Highly resistant to dust and water, and amazing durability enabling shooting even in harsh conditions