This is a Nikon ED 800mm f5.6 AI-S lens, which is something that you definitely do not see every day. In excellent condition, with minor paint wear, clean glass, smooth focusing, and clean diaphragm. This is a manual focus lens- not autofocus- which is something that you’ll definitely want to make note of. But it’s a uniquely sharp, fast supertelephoto lens that’s hard to beat for nature photography (or very far away sports). The lens includes a Nikon TC-300 teleconverter, which makes this a 1600mm f11 lens, which is bananas. Also included: drop-in filter folder for 52mm filters, a 52mm Nikon UV filter, a drop-in gel filter holder, and a Nikon CT-800 hardcase.