The El-Nikkor 50mm f/2.8(N) is a high quality 6 element enlarger lens. The (N) designation indicates Nikon's "new" computation which boasts inproved edge resolution and reduced loss of light intensity. Although marketed primarily as an enlarger lens, the (N) version is also ideal for extreme macrophotography. This particular lens (S/N 2271426) was purchased some time ago for a project which didn'.t eventuate. As a result it has never been used and remains in as new condition. There's no fungus, no dust, no scratches, no blemishes of any kind. The lens comes complete with its original dust-proof container.