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Old 08-10-2019, 12:44 PM
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sil (Steve)
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Join Date: Jun 2012
Location: Canberra
Posts: 1,474
I was wondering if the optics were less than perfect (technically impossible to achieve) wouldn't the 152mm give increased chromatic aberations and so measurably worse viewing (still assuming both are "same quality" optics)? Not noticable enough to typical eyes but maybe enough to make splitting doubles muddier. Does any manufacturer actually produce two OTAs really identical in performance and only slightly different size?
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