K&F Concept® PRO PK-NEX Adapter Pentax PK Lens to Sony NEX E-Mount .445
Premium K&F Concept® PRO lens adapter from the official sales partner in Germany. K&F Concept® EXA-NEX Brass Adapter Exakta Lens to Sony NEX E-Mount. 336. The PRO series from K&F Concept® sets the benchmark in the field of lens adapters.