I have this wonderful Canon 50mm f0.95 in M-Mount that was converted by DAG (Don Goldberg).
The focus is absolutely spot-on wide open. My tests from f4 show this particular sample to be extremely sharp, rivaling my 50 lux asph. Incredible, yes, but you will see by yourself without any doubt and you will be able to confirm.

I don't really know what I want but I'm open for a trade. Please don't hesitate to make me an interesting offer.