This Canon EF 800mm camera lens has magnesium alloy construction, which makes it ultra-durable and great for taking on trips. It is lightweight, portable, and great for anyone looking for a versatile super-telephoto option. It incorporates Canon's highest standard of precision optics, and is sure to get a crisp, clean shot every time. The focusing system is easy to use, and a snap to connect to most digital cameras. It is also water and splashproof, which makes it ideal for outdoor adventures. This is a great option for anyone looking for a durable camera in a small, solid construction. This lens is part of Canon's L-series, which means you are sure to have outstanding performance for decades to come out of this camera lens.