Nikon PN-11 brand_Gralab we've grouped them into three

we've grouped them into three different condition grades:

Has some very minor wear on the focusing screen

Back housing and insert are matched

things move smoothly

Nikon PN-11 brand_Gralab we've grouped them into threeThe Nikon PN 11 is a 52. 5mm extension tube originally designed to provide 1: 1 magnification on the 105mm f4 Micro Nikkor lens. That said, you can use it with any Nikon F lens for extra macro magnification. And unlike other Nikon tubes, the PN 11 has a rotating tripod mount for extra stability, which is extremely useful. In excellent condition, except for a light scrape on one edge which does not affect function (see image.)