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  1. 1.25" 99 Percent reflectivity Everbite mirror, 60 degree viewing

    $322.00
    This unique 60° viewing angle 1.25" diagonal is a sensible step up for comfortable extended viewing of the Moon and planets, as well as more comfortable terrestrial observing . . .
  2. Takahashi 1/10Th wave accuracy 2" compression ring Diagonal w/1.25" adapter

    $580.00
    This 2" diagonal uses a telescope-grade elliptical mirror with a guaranteed 1/10th wave surface accuracy for superb high contrast/high detail lunar, planetary, and deep space images . . .
  3. Questar 2" Quartz silver mirror for 7" Questars

    $895.00
    This 2" Questar star diagonal allows the use of 2" eyepieces with the 7" Questar Maksutov. Its 1/20th wave first surface quartz mirror has silver mirror coatings for optimum light transmission and contrast.
  4. 1.25" mirror diagonal for Brandon eyepieces on a 3.5" Questar

    $335.00
    This Questar #19107 star diagonal is designed for axial viewing with 3.5" Questar telescopes only . . .


  5. 1.25" Everbrite 99% Reflectivity mirror diagonal

    $285.00
    This 90° 1.25" first-surface mirror star diagonal has Everbrite dielectric mirror coatings for a full 99% reflectivity, the highest possible . . .
  6. Tele Vue Adapter to use 2" refractor diagonals on Schmidt-Cassegrains

    $60.00
    This adapter tube lets you use 2" refractor-type star diagonals on a Schmidt-Cassegrain telescope's threaded rear cell . . .
  7. 1.25" Enhanced aluminum 96% reflectivity mirror diagonal

    $189.00
    This 90° 1.25" mirror-type star diagonal uses enhanced aluminum mirror coatings for a full 95% reflectivity. The mirror is overcoated with quartz for long life. The mirror housing and 1.25" barrels are precision-machined from a single block of solid aluminum, rather than being simply a pair of less-rigid tubes screwed into a flimsy plastic mirror housing or sheet metal stamping, as with lesse . . .
  8. Celestron 2" DIELECTRIC STAR DIAGONAL WITH TWIST-LOCK

    $249.95
    Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings
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