Samsung NX body + Paktica PB lens
COMPATIBLE IN THEORY
The flange focal depth should allow conversion, but...
However, why are there no suitable adapters is a different question, the difference in flange focal depth of the PB (44.4 mm) and the Samsung NX (25.5 mm) seems to be too much.
The flange focal depth of the Praktica B bayonet lock system which was introduced in 1978 (bayonet or PB mount) is often specified 44mm incorrectly, while it's actually 44.4mm.
Although the Samsung company hasn't announced it officially yet, there were no new bodies or lenses released for the NX system since February 2015. The company also withdrew it from its major markets. This makes the future of the NX unclear, and since there were no newer series released, the system is becoming increasingly rare. Find out more in the wiki. You can read more about the NX receptacle in this article.
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