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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

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.

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$259.95 - $259.95
$259.95
$259.95 - $259.95
$259.95

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...

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$259.95 - $259.95
$259.95
$259.95 - $259.95
$259.95
$159.95 - $159.95
$159.95
$159.95 - $159.95
$159.95

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 ...

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$159.95 - $159.95
$159.95
$159.95 - $159.95
$159.95
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

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...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
$184.95 - $184.95
$184.95
$184.95 - $184.95
$184.95

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...

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$184.95 - $184.95
$184.95
$184.95 - $184.95
$184.95
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

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...

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$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00