the C-mount lenses arrived
![Shocked :o](https://nikongear.net/revival/Smileys/default/shocked.gif)
the cheap chinese adapter were milled in such a way that the lens is facing the wrong way when screwed-in
![Roll Eyes ::)](https://nikongear.net/revival/Smileys/default/rolleyes.gif)
the top-facing part is underneath
one lens focuses to infinity while the other one won't
the D-mount lens is pointless for use with the Nikon 1.