Thread: Ethos 21 vs 17 for 12inch f/10
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  #18  
Old 01-01-2020, 08:56 PM
Startrek (Martin)
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Startrek is offline 		 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,031
James,
No issue with flexure in the Paracorr and 21mm Ethos combo as I usually view above 35 degrees in Altitude
I just ensure all the thumbscrews are nice and tight along the image train
Cheers
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