03 Canon EF 100-400mm f/4.5-5.6l is USM

i love shooting telephoto mountain scenes and nothing captures the not-oftenseen details like this lens. It produces incredibly sharp images and has a fantastic zoom range, allowing me to capture images like light-bathed ridges of a mountain summit or a pattern in the ice of a floating iceberg. This lens is reliable and sharp while still being an easy lens to throw in your bag for a trip.