M42 lens - Carl Zeiss Jena, Meyer-Optik Görlitz, Jupiter, Helios, Pentacon, Cosina, Porst ....: Helios 44-2 58mm F/2
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Focused Lens Discussions - Germany - CZJ (Zeiss) Biotar 58/2 = USSR - Helios 44: Adapted Lens Talk Forum: Digital Photography Review
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