This is an extremely rare Leica M-mount ultra-wide-angle lens, almost never seen on the Japanese market. Although it's an expensive lens, it allows you to switch between focal lengths of 16mm, 18mm, and 21mm. Considering it's like having three high-performance prime lenses in one, it might actually seem like a good deal. I've been using this lens for a long time as a personal hobby, but due to circumstances, I've reluctantly decided to sell it. The body has some minor scratches, but the lens is in good condition and I believe it's a beautiful item. There is no mold or fogging inside the lens, and it is very clear. I can't see any dust or debris. The focus ring, aperture ring, and focal length switching ring all operate smoothly. All accessories are original and include a hood cap, rear cap, hood, and case. This lens may never appear on the Japanese market again. Don't miss this opportunity. Ultra-rare Leica TRI-ELMAR-M 16-18-21mm F4 ASPH 11626 6bit 14212 12458 14379 Leica M-mount Ultra-wide angle