Nikon EL NIKKOR 50mm f2.8 M39 mount

For sale is a Nikon EL NIKKOR 50mm f/2.8 M39 mount enlarging lens. The design is excellent (the font of the aperture numbers is also nice) and it's a lens that offers both resolution and bokeh. As expected from Nikon. The torque when turning the aperture ring with a click is pleasant. On a NEX5 (SONY E-mount), I was able to achieve infinity focus at the widest aperture via an L39-M42 adapter ring → M42 helicoid (25-55mm) → M42-SONY E-mount adapter ring. I attached it to a NEX5 and took some sample photos, so please check them out.

☆Appearance
Beautiful. Please enlarge the photos to confirm.
☆Optics
Beautiful. Please enlarge the photos to confirm.
※Please refrain from purchasing if you are particular about these details.
☆Operation
No problems.

☆Included Items
○Original box

※This is just an adjustment of the flange back on a NEX5 (SONY E-mount).
※Focusing and infinity focus may vary depending on the adapter and camera, so we cannot guarantee them.
Please refrain from purchasing if you are seeking perfection.
※Listed as X-mount for convenience. It is an M39 mount.
※Due to the nature of used items, the appearance of scratches, signs of use, and the optics may vary depending on individual perception.
※Please understand that this is a used item before purchasing.
※No claims and no returns.
※Only the lens and accessories are for sale. Adapter rings, helicoids, and other shooting equipment are not included.
※There may be oversights other than the above, but please forgive me as I am an amateur.
※Please purchase after fully understanding the contents.
Other features... Single-focus lens
Made in Japan
Old lens