James Moriss #3 -- NEX-5 & Leitz Hector 135mm f4.5. Click to enlarge.
Actually, only half of Hector. Went to the camera show today and picked up a few more bits of gear. One of these is the front part of a Leitz Hector 135mm f4.5 (M-Mount or it could be LTM). Funny thing is that when I saw this, I immediately thought of my home made NEX focusing helicoid. Indeed, with a bit of work, I was able to use the lens in the evening. Very happy with the optical quality. As a matter of fact, I have not been disappointed with any Leica lenses I have had so far. Anyway, I think it's $20 well spent.
Also picked up a Tamron 200mm f3.5 Adaptall, a Rollei QBM mount Voigtlander Color-Dynarex 200mm f4. Would be interesting to see what difference there is between the Voigtlander and the Tamron other than 1/3 of a stop of light.