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my wife as a teen ground a 8'' f8 mirror for a Newtonian
she had the tube internal mounts and spider but not much else
some years later I found an older 8'' f7 Newtonian with a equatorial -clock drive
so used that to finish and mount her mirror and tube
her's was much better then the factory produced f7
when I was a kid dad had a german ww2 tripod binocular by leica artillery/range used
it was huge and heavy but had a crisp image
now we have a little 3.5'' folded mirror scope that sure is eazyer to lug around
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