High quality smart vented lens hood for rangefinder cameras. Features two threads on front to attach filters and caps without the need to remove hood. Inner thread at lens is 40.5mm, outer thread at hood is 49mm
For lenses with 39mm filter thread (e.g. Leica Summicron 35/2, Leica Summicron 50/2, Leica Summaron 35/2.8 & 3.5).
Step up ring available for lenses with 40.5mm filter thread (e.g. Nikon 50/2, Sonnar 50/2).