Description: This lens is a high end apochromatic lens very much used in highly demanding environment of macro photography and industrial/cine work. It works nice and iris is perfect. Rear M39 thread. Front M43x0.75 (I have available adapters for both, look at my shop).
Issues: just normal usage marks in body. A little nick in back lens. Metal is a bit bent in the rear
Technical information: HTTPS://www.eureca.de/pdf/optics/schneider/Schneider.pdf (see page 5)