Nippon Kogaku K. K. lenses manufactured between 1959 and 1977, from the brand that later became known as Nikon, have a different optical formula and image characteristics that distinguish them from their later AI/AIS counterparts. These early pre-Ai lenses are single coated, which produces a softer contrast and a more atmospheric, vintage look. They may be more susceptible to lens flare in certain lighting conditions. These distinctive characteristics can offer a unique and artistic touch to the look of the image.
can be used with speed boosters
77mm, outer diameter 80mm for Matt Boxes
Followfocusgears (0.8 pitch)
EF - mount