The Micro-Nikkor 55mm f/3.5 F lens has extremely high definition in the macro domain and, at the same time, is an excellent standard lens. An improved coating was introduced for this second version (1970-1975, serial numbers from 600001 to 850001). focal length: 55mm iris diaphragm: from f/3.5 to f/32 minimum focusing distance: 24.1cm angle of view: 43º elements/groups: 5/4 filter thread diameter: 52mm weight: 246g Cosmetically shows signs of use, but is still in acceptable good condition for its age. Due to the design of this lens, the rear element protrudes slightly when the focal length is set to infinity. Minor wear is common in the rear element due to this reason. The unit offered here is not an exception, although the wear on the rear element is not significant and should not affect the lens's optical performance. there is no fungus, haze or separation the diaphragm is clean and free of oil focusing and diaphragm rings moves smoothly comes with Nikon front cap shipping method: Post Office or GLS (depending of your country) registered, with track and trace on internet in case you buy 2 or more lots I will combine shipping and will refund you the overpaid postage NOTE: USA buyers must add the 15% of the final price as tariff for goods received from European Union.