And the Benefits of Mounting Rings for an OTA Are?

Has anyone produced a primer or treatise, scholarly or otherwise, on why
rings are preferred for large OTAs, say, that will support 12" or larger
OTAs for Newtonians, SCTs, and other tubes? I think the standard answer is
that the rings will reduce tube flexure.
--
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

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