✅ OBIETTIVO PORTA SENZA MARCHIO PER OBIETTIVI 49MM DIMENSIONE VITE ANTERIORE 35MM TELAIO FOTOCAMERA
Should be mounted on top of a lens. To fit 50mm or other lenses with 49mm filter size front. You get funny distorted view pictures. It shows vigneting and you shouldn't expect high quality, but its more to get funny pictures.