#CarlZeiss #BIGMETAR #MC #Mamiya #Pentacon I'm a camera novice. Stored and cleaned by a novice. Listed as Pentax K-mount, but I'm not sure about the mount. Looking through the lens, I can see some dust and debris. This is an old, used item. Overall, there are light scratches and scuffs, and some may be overlooked. Thank you for your understanding. Feel free to ask for more photos, ask questions, or negotiate the price in the comments. I look forward to hearing from you.