The M39 thread and the rear part of the lens are made of 3D printed plastic. What's in the box: Lens on M39 thread.
Beirette Modell II 35mm Film Camera Meyer Optik Trioplan 45mm f3.5 Case
Meyer Optik Görlitz Trioplan 50mm f2.9 Standard Lens with Exa/Exakta Bayonet
Meyer Görlitz Trioplan 2.8/10.5 cm with Exakta Bayonet + M39 Thread
Welta Welti I with Meyer Optics Trioplan 2.9/50 mm
Meyer Optik Orestor 100mm f2.8 m42 Mount - Full Working Order / GFX
Meyer Optik; Diarectim; 62.5/250; Lens; Projector
