Fotofox M39 (and M42) adapters - upsidedown lenses

<p>My Voigtländer LTM lenses are all upside down on my NEX-6.</p>

<p>I have the M39 to NEX adapter but I think there are other models that have the same disorientation problem. The adapter has two parts, the outer black base that mounts on the camera and the inner metal ring with the female 39 mm thread...<br>

<img src="http://ecx.images-amazon.com/images/I/41uPl0Xz5yL.jpg" alt="" width="500" height="500" /><br>

There are four set screw (small grub screws) that hold the inner ring in place. User comments on Amazon say that these can be loosened and the ring repositioned. But I don't know what tool does this. In my sample a tiny flat-head or Phillips screwdriver is certainly wrong. A truly tiny Allen wrench (1 mm ?) might do it but my smallest is 1.5 mm.</p>

<p>Does anyone know the correct tool?</p>

<p>I had the same problem and it is a tiny Allen-type screw. Fortunately, I have multiple sets of small screwdriver kits with various tips and found one that worked 1/16 inch on mine.</p>

<p>Sorry, I should have clarified that mine was not a Fotodiox but similar with three set setscrews. Looks almost the same!</p>

<p>This points out that many adapters are not as precise as they should be. De-centering & lack of parallelism are serious issues with wide angle RF lenses. I have had this problem with the Fotodiox 'Pro' adapter, which is non-adjustable. Voigtlander lenses are easy to fix. Simply loosen the 4 set screws on the rear of the lens and rotate the mounting ring 180 degrees.</p>

<p>We got it done with an Allen (hex) wrench that was smaller than 1.27 mm (0.05 inch). Probably 1 mm.</p>

<p>My wife had the brilliant idea to take it to the kiosk in the mall where they change watch batteries and such. They had the right tool there!</p>

<p>Robert: Yes. So it's a good thing all my M39s are wide and slow!</p>