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Is there a 2" filter adaptor for a 1.25" thread?
Hi all,
There are these 2"/1.25" hybrid eyepieces. No problem there. BUT if you only have 2" filters, you can't always use the typical 2" to 1.25" reducing bushing tu use them. The 2" sleeve say of the Nagler 12mm doesn't have a 2" thread, so you are limited to using 1.25 " filters. In my Newtonian I can't use 2" filters as I wouldn't get the in-travel needed in the focuser.
Is there an EXPANSION bushing to thread into a 1.25" thread and allow the use of 2" filters? The expansion bushing/filter combo would then slide into the 2" focuser ahead of the 1.25". It would mean needing fewer filters just to be able to use these 2"/1.25" hybrid EPs.
Mental.
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