Don't put a standard-issue telescope diagonal into a high-quality refractor or Cassegrain telescope or you'll be losing 10% or more of the light collected by the scope's optics. Use an Orion Enhanced mirror telescope diagonal instead. Their lab-tested enhanced aluminum coatings reflect 97% of the inbound light to your eyepiece, for brighter images compared to standard telescope diagonals. Beautifully machined and anodized aluminum housing features machine-threaded baffles for high contrast and nonmarring compression ring collar for securing the eyepiece. The 2" model has a 1.25" adapter to allow use of 1.25" eyepieces. Nosepiece barrel is threaded to accept filters. Endcaps included.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

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