Nikon f2.8 135mm Nikkor-Q Lens. Factory AI conversion.

First made in 1965, this is a slightly longer telephoto lens. It has a fast f2.8 maximum aperture and a built in lens hood. This is the first variant of the lens, with the earlier lens coating and a serial number between 135001 and 367229. Two versions were made with 'Nippon Kogaku' and 'Nikon', this lens is the later 'Nikon' version. This lens has had a new factory AI aperture ring fitted. The ring has the later scalloped edges.