This is a highly popular and valuable early model Super Takumar, even rarer than the sought-after pre-war versions. Super Takumar 55mm f/1.8 (early model) How to identify it: * Serial number before "Super Takumar" * A-M switch is reversed * Shape of the index mark❗️ * Aperture ring rotates in reverse, with 1.8 on the left. Because it doesn't use atomic lenses, there's no yellowing, and you can enjoy clear images with bold bokeh and flares. This lens is also known for its strong circular bokeh and the ease with which it produces ghosting. There is no mold inside the lens. I couldn't find any scratches that would affect photography, but please refrain from purchasing if you are concerned. A lens protector is included as a bonus! Thank you!