There is a reason why this is the only existing sample allowing for infinity. This project took to much time to be repeated. Multiple challenges needed to be resolved to get the lens properly working on Nikon camera*. Even few custom parts made. Little bonus: 10cm added to minimum focusing distance. Infinity on spot, focusing scale is correct. Lens is nice and no issues to be mentioned. Perhaps a minor crack in the focusing grip, now reinforced. *No AI Nikon function, pure manual mode. Price is crazy but indicates realistic compensation for the effort. Nevertheless, I always accept a good offer. Thank you for your continuous support of my strange camera/lens projects and restorations. Shipping Worldwide: Signed For, Priority, Tracking. EU 5-10 days, Rest 3-4 weeks. EU buyers: to avoid currency conversion costs i can relist in EUR if desired.