Star diagonal with 99% reflection, 2″


The 2“ Omegon star diagonal’s mirror is coated with a very thin layer of vacuum deposited aluminium in order to guarantee a maximum reflection of 99% with the highest contrast and optimal sharpness. The residual stress in the plane mirror which can occur with the dielectric vapour deposition process is ruled out here.

In stock

SKU: 13318 Category:


Beside eyepieces, a star diagonal is one of the most important accessories. What is the use of a good objective or the best eyepiece if the star diagonal is inferior? We recommend the Omegon 2“ star diagonal without reservation to everyone, including those working with high end instruments. The star diagonal permits full illumination of 2” wide field eyepieces.

Included in delivery:

2“ star diagonal with 99% reflection
reducing adapter, from 2“ to 1.25”



  • Connection (to the telescope) 2″
  • Viewing posture 90°
  • Coating of optical system dielectric
  • Surface reflection 99

Special features

  • Correction of vertically reversed image – Yes
  • Correction of horizontally reversed image – Yes
  • Ring clamp – Yes


  • Colour  –  Black-Silver
  • Series – Pro
  • Type – Deviating optics
  • Type of build – Diagonal mirror


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