This 1.25” dielectric mirror-type star diagonal was a Sky & Telescope Hot Product for 2007! Considering its performance, it would be an outstanding value at twice the price. At its economical low price, it's still a hot product, and nothing short of sensational . . .
This 2” dielectric mirror-type star diagonal would be an outstanding value at twice the price. At this low price, if there ever was a bargain in astronomy, this is it . . .
Temporarily out of stock; will charge and ship when available.
This 2” dielectric mirror-type star diagonal is designed to give you first-class performance with a Schmidt-Cassegrain – at a money-saving and far from first-class price . . .
This Astro-Tech premium 45° image erecting diagonal has a non-marring compression ring eyepiece holder. It gives you upright and right-reading terrestrial views with 1.25” eyepieces in catadioptric telescopes with a 1.25" visual back or in refractors with a 1.25" focuser drawtube.
This 1.25" 45° image erector threads onto the rear of Meade ETX-90/105/125 telescopes only. It will not fit the Meade ETX-60/70AT scopes or any other telescope . . .
This 2” Astro-Tech star diagonal for catadioptric telescopes has a quartz mirror with guaranteed 1/10th wave accuracy and state-of-the-art 46-layer dielectric mirror coatings for a full 99% reflectivity and the brightest possible images . . .
This 45° image erecting diagonal is designed to use 1.25” eyepieces in catadioptric telescopes with a 1.25" visual back or in refractors with a 1.25" focuser drawtube . . .
Temporarily out of stock; will charge and ship when available.
This physically short 1.5” long by 2” diameter adapter tube allows the use of conventional 2” star diagonals (the kind that have a 2” diameter barrel that fits into a refractor’s 2” focuser drawtube) on a Schmidt-Cassegrain telescope's threaded rear cell. With some smaller aperture telescopes and some 2” diagonals, the diagonal may hit the drive base when the scope tries to swing the . . .
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