Found 2 3D-models for “m42 forever” across many websites

#M42 lens mount#extension tube#sony e mount#Pentax#m42 forever#Helicoid#Fujinon#variable extension#A26#Rollei
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M42-4-E-Var - A Focusing M42 to E-Mount Adapter

M42-4-E-Var - A Focusing M42 to E-Mount Adapter

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A26 to M42 Lens Adapter

A26 to M42 Lens Adapter

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