Thank you for viewing. Please do not refer to the mount in the size section. [Product Name] Contax Carl zeiss Distagon T* 18mm f/4 MMJ Lens Nikon F Mount Converted Contax Carl Zeiss Distagon Lens F Mount Modified #1517 [Serial Number] 7249786 [Appearance] There is some wear and tear due to the used condition, but there is no major damage. *Please check the photos for details. [Optics] No mold or clouding is visible, and both visibility and depiction are good. There is a slight amount of dust, but it does not affect shooting. [Operation] It has been modified to Nikon F mount. Major operations have been confirmed. *Due to the age of the product, accuracy cannot be guaranteed. [Included Accessories] ・Rear lens cap (Everything in the photos is included) [Shipping] We will carefully pack and ship via Yu-Pack. *Please purchase only if you understand used and vintage items. *There are individual differences in how you perceive the condition, so please check the photos and description carefully. Please feel free to comment if you have any questions. #camera #lens #film camera #manual focus #autofocus #old #vintage #vintage #MF #AF