Posted: Fri May 18, 2018 6:31 am Post subject: Disassembling a CZJ Flektogon 4/25 M42 |
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gi0rgi0ba wrote:
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 _________________ lenses:
CZJ Biotar 58mm f/2 silver (M42),CZJ Biotar 58mm f/2 black (M40),CZJ Flektogon 20mm f/4 (M42),CZJ Flektogon 35mm f/2.4 (M42),
Staeble Kata 45mm f/2.8 (M39-Paxette), Staeble Choro 38mm f/3,5 (M39-Paxette),
Schneider-Kreuznach Xenar 50mm f/2.8 (M39-Paxette)
Asahi Pentax SMC Takumar 50mm f/1.4 (M42)
Asahi Pentax SMC Pentax-M 28mm f/2.8 |