There are people who purchase items without reading the product description. There are cases where they then leave negative feedback. Such behavior is very troublesome, so please be sure to read the entire product description before purchasing to avoid any problems. Please refrain from disappearing after commenting! Comments will be deleted if there is no reply within 2 hours. The Carl Zeiss Distagon 28/2.8 lens has excellent optical performance and is ideal for wide-angle photography. - Y/C mount (Listed as NF mount due to no applicable category) - Brand: Carl Zeiss (made in Japan - Yashica) - Model Name: Distagon 28/2.8 - Focal Length: 28mm - Maximum Aperture: f/2.8 - Includes genuine lens cap, rear cap, and filter I am not familiar with cameras, so I cannot answer specialized questions. *This is a USED item that has been handled by people, so please refrain from purchasing if you are sensitive to imperfections or seek perfection. If you are interested, please consider purchasing. **Returns and claims are not accepted after purchase. Also, in the event of a return or cancellation due to the buyer's circumstances, the buyer will be responsible for the shipping costs (round trip). Thank you for your understanding.