Lots of abberations, soft wide open, no normal focusing, no normal diaphragm.
2400 EUR only.
https://www.kickstarter.com/projects/1745517054/50-mm-f-075-the-fastest-photographic-lens-in-the-w
All 3 of them seem to have been sold already. They still have the 40mm for m4/3, though.
These are X-ray lenses you can get on eBay (but watch out for that radiation!)
It is exactly the lens I have. When focussing far objets distance between rear lens and focal plane is extremly small. No chance to attach to my m43 or my samsung. Only macro up to 40 cm possible. The same problem with my Rodenstock TV-Heligon 50mm f0.75 I wonder how these kickstarter guys solve that problem.
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