Thank you very much for viewing. Instant purchase without comment is welcome. Although it is correctly a Leica L39 screw mount, I am using a Nikon 1 mount as a substitute because it is not in the selection items. ＜Product Description＞ Nippon Kogaku Nikkor H.C. 5cm 50mm F/2 Leica L mount lens single focus old lens ＜Condition＞ It has a beautiful appearance for its age. There are no major scratches or dents to note. Please check the images. ＜Condition＞ The lens has some dust and slight cleaning marks due to aging, but there is no mold, clouding, or balsam separation. ＜Operation＞ Operation has been confirmed. The helicoid movement is smooth. The aperture operation is also problem-free. Accessories include front and rear caps. (The caps are not genuine) Optical system inspection is done by visual inspection under fluorescent light. It is not checked under strong light such as LED. It is still a practical item that can be used, but please refrain from bidding if you are concerned about the condition of the product. Please refrain from bidding if you are looking for the quality of a new product or are extremely sensitive. We are looking forward to your bids from those who understand old cameras and lenses. We are committed to providing a pleasant transaction. Thank you very much.