Summicron 50mm f2.0 4th (第4世代) | ライカカタログ。Leica Summicron-M 50mm f/2 4th – Doppietta-Tokyo。Leica Summicron 50mm F2 1st Rigid SN. 192**** – FILMCAMERA TOKYO。LEICA 50mm f/2 SUMMICRON with Near-Focusing Range (1956-1968)。Leica Summicron-M 50mm f2 lens. 4世代 (4th version)M mount lens. Excellent performance even on digital Leica sensors. I use it on my Leica M10. Made in . No mold or cloudiness or fungus.