Glass, Metal and Silicium

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2011
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2009
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  - Jupiter 9 (M42 version) servicing
    08/24/09
    Here is a partial repair guide for Jupiter 9 lenses. Unfortunately I was not able to fully dismantle it, as several screws broke when trying to use them.
    
    This lens optical schema is made of 7 elements in 3 groups. The diaphragm is located between the two triplets.
    
    The fro
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2008
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2007
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2006