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Disassembling a CZJ Flektogon 4/25 M42
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PostPosted: Fri May 18, 2018 6:31 am    Post subject: Disassembling a CZJ Flektogon 4/25 M42 Reply with quote

Hello everybody,
I post some photos as guide to open this lens





to open the rear optic: unscrew the retaining ring (yellow arrows), and unscrewing the cover (red arrow) we can see the aperture blades mechanism. A spring (in green) should be there to permit the aperture correctly works:






the front optics group is removed by unscrewing first the name ring then the inner retaining ring:





giorgio