Leica Leitz Elmarit 90mm 9cm F2.8 Black M Mount Lens
This is an excellent tele lens for your M mount camera. This would be an excellent portrait or details lens.
This one is in excellent condition with light wear. There are a few very light marks on the front element but they will not affect your image quality. Otherwise the glass is clean and scratch free with no fungus or haze. The focus and aperture are smooth.