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Frozen focusers

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#1 opticchase

opticchase

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Posted 23 February 2021 - 12:11 PM

I have two project binos with frozen diopter focusers.  One is  a Zeiss 30s era Deltrintem and the other a Navy 7x50 Sard.  They have been subjected to weeks of penetrating oil with and without heat.  No sign of progress yet?  Any ideas?


Edited by opticchase, 24 February 2021 - 12:15 AM.



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