Skip to content

Celestron Diagonals

Celestron diagonals turn the light path 90 degrees so you can look into a refractor or SCT from a comfortable position. The basic 1.25" star diagonal suits entry telescopes, the dielectric star diagonals with twist-lock in 1.25" and 2" offer high reflectivity and secure eyepiece clamping, and the 2" mirror diagonal with XLT coatings accepts wide-field 2" eyepieces.

The 45-degree erect image diagonal gives a correctly oriented view for birding and terrestrial use.

Filters

CA$361.00 - CA$361.00
CA$361.00
CA$361.00 - CA$361.00
CA$361.00

Celestron Dielectric Star Diagonal with Twist-Lock - 2"

CEL-93573

Delivers over 99% reflectivity with 58 layers of dielectric coatings Secure, self-centering Twist-Lock mechanism for 2" and 1.25" eyepieces Includ...

View full details
CA$361.00 - CA$361.00
CA$361.00
CA$361.00 - CA$361.00
CA$361.00
CA$222.00 - CA$222.00
CA$222.00
CA$222.00 - CA$222.00
CA$222.00

Celestron Dielectric Star Diagonal with Twist-Lock - 1.25"

CEL-93571

Over 99% reflectivity from 58-layer dielectric mirror coatings 1.25” Twist-Lock holder provides a secure, self-centering grip Diffraction-limited ...

View full details
CA$222.00 - CA$222.00
CA$222.00
CA$222.00 - CA$222.00
CA$222.00
CA$62.00 - CA$62.00
CA$62.00
CA$62.00 - CA$62.00
CA$62.00

Celestron 45-Degree Erect Image Diagonal

CEL-94112-A

Corrects image orientation for terrestrial viewing Produces right-side-up and left-to-right correct images Comfortable 45-degree viewing ang...

View full details
CA$62.00 - CA$62.00
CA$62.00
CA$62.00 - CA$62.00
CA$62.00
CA$257.00 - CA$257.00
CA$257.00
CA$257.00 - CA$257.00
CA$257.00

Celestron Mirror Diagonal with XLT Coatings - 2"

CEL-93527

Interferometer-tested mirror with 1/10 wave or better surface accuracy Features Celestron's proprietary XLT optical coatings for maximum light tra...

View full details
CA$257.00 - CA$257.00
CA$257.00
CA$257.00 - CA$257.00
CA$257.00
CA$62.00 - CA$62.00
CA$62.00
CA$62.00 - CA$62.00
CA$62.00

Celestron Star Diagonal - 1.25"

CEL-94115-A

Provides a comfortable 90° viewing angle Inserts into any 1.25" telescope focuser or visual back Accepts standard 1.25" eyepieces Corrects image o...

View full details
CA$62.00 - CA$62.00
CA$62.00
CA$62.00 - CA$62.00
CA$62.00