How to make the Meopta Meostigmat f1.0/50mm work...
The lens barrel has to be shortened first see first pics 1+2 (while doing so, the rear lens group will need to be taken out, later re-inserted again). I then used Rafcamera adapter pieces to mount onto a chinese M65 helicoid (pic 3+4):
[click for larger image]
On my Panasonic GH4 this then leaves quite some space, so it focuses quite a bit over infinity, which I adjust using the set-screws of the lens mounting adapter ring. Focusing range here is then infinity to some 150mm close-up ;-)
I recommend using a clamp-on sunshade as there are no front threads.