Re: [ATM] Trischiefspiegler in 6" or 8"

["Bob May" <bobmay@nethere.com>]

The Trishiefspiegler, like all tilted component scopes practically, can be
scaled down for improved performance in objective diameter but don't scale
up all that well.  Like refractors, in which an F8 at 2" will do an
excellent job but one 10" in diameter with the same glasses will be full of
color, the tilted component scopes will generally start getting poorer
images if you don't lengthen the FRatio.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net


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