M42 screw mount. Excellent condition, no scratches or fungus on the glass. Smooth focus and the 10 blade stepless preset diaphragm is working correctly.
M42 Mount Pentacon 30mm f3.5 Wide Angle Prime Lens Manual Focus Vintage Germany
Camera Lens Pentacon auto f1.8 50mm Multi Coating M42 Mount Preset Prime Black
Pentacon Six Arsenal Zodiak -8 3.5/30mm Fisheye Lens
Pentacon Penti II Gold Analog Compact Camera / Domiplan V 30mm 3.5
Vivitar Series V2XMR 1 T-Mount 2X Converter F/Preset for 500mm, 420-800mm, 650-1300mm T-Mount Lenses
