The Nikon 35mm f2 Nikkor-O Auto is a fast wide-angle prime lens for the Nikon F mount. Glass has minor dust, no haze or fungus, very light front element marks which won't affect function. This is an original pre-AI lens that has been AI converted with... I'm gonna say, a grinder? The conversion is unattractive but functional. Cosmetic condition is otherwise very good, with minor paint wear; focusing and diaphragm work well.