Here's a series of images taken with the CV15mm f/4.5 M LTM converted to M mount lens.
Fuji X-Pro 1 with Voigtlander 15mm f4.5 | picabroad.com
Hate to say it, but this is yet another photographer posting wide angle images with noticeable detail smearing away from the centre. The CV15 should perform far better than this even wide open, and clearly does perform miles better on the NEX-5N and GXR M Mount.
This story is reminding me of the trickle of first images taken with M glass on the NEX-7 which doesn't do nearly as well with the CV15 and many wide angle rangefinder lenses. Hope not, but fear so.