Leica, ZM mount. Using the X mount category as a placeholder. Purchased new from Map Camera around the fall of 2023. I've used it a few times on my M10, but haven't used it much, so I'm selling it. It's incredibly lightweight. Besides its stable rendering, the outstanding flare control is noteworthy. It's a masterpiece that performs consistently in any situation. As a bonus, I'm including the often-expensive genuine hood and a Map Camera original filter. 【High-Quality Optical Performance】 The ZEISS Planar T* 50mm f/2 ZM lens provides sharp, high-contrast images thanks to its excellent optical design. It's especially ideal for portrait and landscape photography. 【Compact Design】 This lens features a lightweight and compact design, making it easy to carry. Convenient for travel and everyday shooting. 【Excellent Build Quality】 The metal body and high-quality lens coating ensure durability and long-term use. - Brand: ZEISS - Model Name: Planar T* 50mm f/2 ZM - Type: Single-focus lens - Accessories: Original box In my subjective opinion, it's in beautiful condition. Upon close inspection, there might be some dust inside the lens. No returns or refunds. Thank you for looking.