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