Canon FD 50mm 1.4 S.S.C aperture repair
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Canon FD 50mm 1.4 SSC - Disassembly , Lubricate , Assembly , Refurb
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Cleaning lens elements in Canon FD 50mm 1:1.4 Breech-lock version (maybe Haze)
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50mm F1.8 Canon nFD FD Lens Cleaning
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Canon FD 50mm 1.4 S.S.C. - Nettoyage complet, diaphragme et optiques
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How to Fix a Vintage Lens Stuck Aperture
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CHEAP CANON 50mm f/1.4!!! FDn to EF mod mount
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Mamiya C220 Shutter Timing Fixed - 80mm f/2.8
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