The Carl Zeiss Planar 1.4/50 is a bright f/1.4 prime lens, compatible with the Contax mount and has a 52mm filter size. - Brand: Carl Zeiss - Model Name: Planar 1.4/50 - Lens Type: Prime Lens - Mount Type: Contax - Maximum Aperture: f/1.4 - Filter Size: 52mm Thank you for viewing. [Product Name] Carl Zeiss Planar T* 50mm F1.4 AEJ [Appearance] There are scratches from normal use, but no noticeable dents or major scratches. [Optics] Faint mold can be seen when a strong light is shone through. I didn't feel a significant impact on shooting except in strong backlight. There is a small amount of dust inside. [Operation] Focusing ring is smooth, aperture operation is good. [Comment] The famous Planar 50mm F1.4. The softness at wide open and the sharpness when stopped down are truly Zeiss. Recommended for those who prioritize practicality and price. Thank you for reading to the end. I am truly grateful♪ ==================================================================================================== We will ship promptly after confirming payment. The product will be cleaned, carefully packaged, and shipped. ==================================================================================================== We strive for smooth and pleasant transactions. Transactions by phone are also possible after winning the bid. May this encounter be a good one. We will conduct the transaction with sincerity, so thank you for your cooperation until the end of the transaction. THANK YOU for your interest. Please feel free to contact me if you have any questions or concerns!