Manufacturer: LEICA Leica *Actual item is Leica L39 mount Product Name: Summicron L50mm f2.0 Collapsible Thoriated Summicron *Yellowing on the rear element Product Condition: Good Included Accessories: Third-party rear cap Operational Status: Tested with actual photos/Maintenance completed in July 2025 (There is a one-year repair warranty from July, so we will take care of any problems.) Appearance: There are scratches and minor wear due to age, but there are no noticeable scratches and the condition is good. Please check the photos for details. (Please also judge from the photos for areas not mentioned in the text.) Optics: When a strong light is shone on it, there are slight cleaning marks, extremely small dust particles on the middle element, and some coating deterioration, but it is in good condition considering its age. There is no effect on actual photos. Please check the photos for details. (Please also judge from the photos for areas not mentioned in the text.) ■Notes: Even if not mentioned, dust, extremely small mold, and extremely slight clouding that have absolutely no effect on photography may be barely visible depending on the angle and amount of light. The description of normal functionality indicates that there are generally no problems, but there may be slight errors or individual quirks.