Found 1 3D-models for “variable extension” across many websites

#Helicoid#helicoidal focuser#Pentax#Sony nex#m42 forever#M42 lens mount#extension tube#Lens Adapter#screwmount#Vivitar
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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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