4 Item(s)
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  1. Questar straight-through roof prism for 3.5" Questar scopes

    This straight-through roof prism image erector is designed to use 1.25" Questar thread-in eyepieces on Questar 3.5" Maksutov-Cassegrain telescopes only.
  2. Questar 45°image erecting prism for Questar 3.5" scopes only

    This premium Questar 45° viewing angle image erecting diagonal fits into the back of any Questar 3.5" scope to provide upright and correctly left-to-right oriented images.
  3. Celestron 45° Prism for 1.25" eyepieces

    This 45° image erecting diagonal is for 1.25" eyepieces in catadioptric telescopes with a 1.25" visual back or in refractors with a 1.25" focuser drawtube . . .
  4. Questar 1.25" slip-fit adapter to use a 45° image erector on a Questar

    This Questar slip-fit adapter lets you use a 1.25" image erecting diagonal with a Questar 3.5" telescope or spotting scope.
4 Item(s)
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