The seller should adjust this actual StepUp ring with protective cover just for the Samsung NX 20-50 / 3.5-5.6 and the brand new 16-50 / 3.5-5.6 lens due to the filter size 40.5mm, it fits there namely as well - otherwise there namely no suitable "hood" or Lens Hood, in English for these lenses are not too big where & visually in harmony, insofar as a brilliant move this StepUp Ring "abuse" as a sun visor to. :-)