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1 Carl Zeiss Jena Sonnar 180mm assembly
2 Voigtlander Bessa-I repair
3 Asahi Super Takumar 200mm f4 repair guide
4 How to replace Praktica PLC,VLC batteries
5 How to clean aperture blades
6 Repair Tools for lens fixing
7 Matt's Classic Cameras: Repair Tips
8 Carl Zeiss Jena Tessar 50mm f2.8 Servicing
9 Carl Zeiss Jena 135mm f/3.5 Lens