Telescope Diagonals at BuyTelescopes.com

#918A Diagonal Prism 1.25".

$43.00

Meade #928 45 Degree Erect Image Prism 1.25"

Prism #928 reorients the image of any refractor or Schmidt-Cassegrain telescope for day use. Provides a comfortable viewing position. NOT for Dobsonian or Newtonian reflectors.

$43.00

Meade #937 2" Diagonal Mirror for DS-2060/2070/2080 Models

Large-barrel 2" eyepieces permit wide fields of view impossible to achieve with eyepieces of smaller barrel diameter. The focusers of all Meade DS-Series telescopes include 2" eyepiece-holders to accept the oversize #937 Diagonal Mirror, which in turn accepts eyepieces of 2" barrel diameter. An adapter is included to allow for the use of standard 1.25"-barrel eyepieces in the 2" Diagonal Mirror as well.

$49.00

Meade #932 45 Degree Erecting Prism for ETX-90/105/125 Models

#932 45° erecting prism for ETX-90, ETX-105, ETX-125 models. For terrestrial observing with your ETX Astro Telescope, the #932 Prism results in a fully correctly oriented image and a convenient 45° observing angle.

$49.00

Meade #933 45 Degree Erecting Prism for ETX-60/70/80AT

#933 1.25" 45° erecting prism for ETX-60/70/80AT telescopes (only). Reorients images for daytime use and provides a comfortable viewing position.

$49.00

Lumicon 90-Degree Diagonal 1.25"

The Lumicon 1.25" 90 degree Correct Image Diagonal provides a corrected image (left/right; up/down) for finder and spotting scopes. May also be used on refractors and SCTs. Includes filter threads.

$69.95
$57.00

TeleVue 1.25" 45-Degree Erecting Prism

45° Erecting Amici Prism – 1.25"

$68.99

Stellarvue 1.25" Deluxe 45 Degree Erecting Prism

High quality unit uses compression ring and has a tapered insert tube for better alignment. Provides images that are right side up and correctly oriented. As with all erecting prisms, suggested for daytime use only.

$69.00

Stellarvue 1.25" Deluxe Enhanced Dielectric Diagonal

Dielectric 1 1/4" Mirror Star Diagonal. Comes with a thick, precision, optical flat mirror with an enhanced 99% reflective dielectric coating. Compression ring holds eyepieces firmly and the insert tube has the safety groove and filter thread. All aluminum construction. Individually alignment tested and star tested here for excellent performance.

$99.00

Meade Series 5000 Enhanced Dielectric 2" Diagonal

Boost eyepiece performance with the new 2" Series 5000 enhanced diagonal. This thermally stable, interferometer-tested, enhanced dielectric-coated diagonal boasts 99% reflectivity. Also includes a 1.25" eyepiece adapter.

$129.00

TeleVue 1.25" Standard Mirror Diagonal

1.25" Standard Mirror Diagonal with brass clamp ring. Enhanced Aluminum.

$138.99

Stellarvue Enhanced 2.0" Dielectric Diagonal Special Purchase

Special promotion price with purchase of a Stellarvue telescope. This mirror star diagonal features a thick, oversized mirror. Polished to 1/10th wave minimum and coated with a protective, dielectric coating with 99% reflectivity. Compression ring and insert tube bevel will protect your valued eyepieces and help to better seat the diagonal in the focuser.

$139.00

Meade Series 5000 Enhanced Dielectric 2" Diagonal w/SC Adapter

Enhanced dielectric coatings with 99% reflectivity. Slip fit 2" diagonal with 1.25" adapter. Now includes SC adapter.

$149.00

Takahashi 1.25" Diagonal

1.25" Compression Ring Prism Diagonal

$160.99

TeleVue 1.25" Everbrite Star Diagonal

Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating.

$188.99

Stellarvue Enhanced 2.0" Dielectric Diagonal

This star diagonal features a thick, oversized mirror. Polished to 1/10th wave minimum and coated with a protective, dielectric coating with 99% reflectivity. Compression ring and insert tube grove will protect your valued eyepieces. Includes a 1.25" adapter with compression ring.

$189.00

Stellarvue 2” Correct Image 45 Degree Erecting Prism

Our new 2" fully multicoated 45 degree correct image erecting prism will turn your Stellavue telescope into the ultimate terrestrial scope.

$209.00

Baader Planetarium T-2 Prism Star Diagonal

The Baader Planetarium T-2 Prism Star Diagonal is easily the finest prism star diagonal available today. The right angle prism is produced by Zeiss, and is the identical prism that Zeiss supplied for use with their exquisite APQ telescopes.

$227.00

TeleVue 1.25" 60-Degree Everbrite Star Diagonal

1.25" Everbrite Star Diagonal - 60°. This new angle is a breakthrough for birding and terrestrial viewing; the perfect combination of comfort and performance.

$243.99

Baader Planetarium 2" Clicklock Mirror Star Diagonal

The Baader Planetarium 2" Clicklock Star Diagonal uses the proprietary Baader Maxbright all-dielectric mirror coatings. Baader's Maxbright coatings deliver an amazingly high 99% photo-visual reflectivity along with an extremely hard durable surface.

$250.00