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Original price $129.95 - Original price $129.95Original price$129.95$129.95 - $129.95Current price $129.95| /
Astro-Tech 2" 99% Reflectivity Dielectric Mirror Diagonal For Refractors
Astro-TechIn StockThis 2” dielectric mirror-type star diagonal is an outstanding value. At this low price, if there ever was a bargain in astronomy, this is it. This...
View full detailsOriginal price $129.95 - Original price $129.95Original price$129.95$129.95 - $129.95Current price $129.95| / -
Original price $79.95 - Original price $79.95Original price$79.95$79.95 - $79.95Current price $79.95| /
Astro-Tech 1.25" 99% Reflectivity Dielectric Mirror Diagonal
Astro-TechIn StockThis 1.25" Astro-Tech first-surface mirror star diagonal was named a Sky & Telescope Hot Product for 2007! Sky & Tel recognized that the As...
View full detailsOriginal price $79.95 - Original price $79.95Original price$79.95$79.95 - $79.95Current price $79.95| / -
Original price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| /
Astro-Tech 2" 99% Reflectivity Dielectric Mirror Diagonal for SCTs
Astro-TechIn StockThis 2" dielectric mirror-type star diagonal is designed to give you first-class performance with a Schmidt-Cassegrain - at a money-saving and far ...
View full detailsOriginal price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| / -
Original price $394.00 - Original price $394.00Original price$394.00$394.00 - $394.00Current price $394.00| /
TeleVue 2" Everbrite Star Diagonal Package With 2" To 1.25" Adapter
TeleVueIn StockThis 90° 2” mirror-type star diagonal has Everbrite dielectric mirror coatings for 99% reflectivity. In addition to higher reflectivity than a conv...
View full detailsOriginal price $394.00 - Original price $394.00Original price$394.00$394.00 - $394.00Current price $394.00| / -
Original price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| /
Celestron 2" Starbright XLT Enhanced Aluminum Mirror Diagonal for SCTs
CelestronIn StockThis Celestron 2" mirror star diagonal for catadioptric telescopes has Starbright XLT enhanced aluminum multicoatings for a reflectivity of better ...
View full detailsOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| / -
Original price $43.95 - Original price $43.95Original price$43.95$43.95 - $43.95Current price $43.95| /
Celestron 1.25" Prism Diagonal
CelestronMore on the wayA Star Diagonal lets you view objects that are at a 90° angle from the direction the telescope is pointing, thereby allowing comfortable viewing wh...
View full detailsOriginal price $43.95 - Original price $43.95Original price$43.95$43.95 - $43.95Current price $43.95| / -
Original price $285.00 - Original price $285.00Original price$285.00$285.00 - $285.00Current price $285.00| /
TeleVue 1.25" Everbrite 99% Reflectivity Mirror Diagonal
TeleVueIn StockThis 90° 1.25" mirror-type star diagonal has Everbrite dielectric mirror coatings for 99% reflectivity. In addition to higher reflectivity than a c...
View full detailsOriginal price $285.00 - Original price $285.00Original price$285.00$285.00 - $285.00Current price $285.00| / -
Original price $51.95 - Original price $51.95Original price$51.95$51.95 - $51.95Current price $51.95| /
Celestron 45° Prism for 1.25" Eyepieces
CelestronMore on the wayThis 45-degree viewing angle image erecting diagonal is designed to use 1.25" eyepieces in catadioptric scopes with a 1.25" visual back or in refra...
View full detailsOriginal price $51.95 - Original price $51.95Original price$51.95$51.95 - $51.95Current price $51.95| / -
Original price $189.00 - Original price $189.00Original price$189.00$189.00 - $189.00Current price $189.00| /
TeleVue 1.25" Enhanced Aluminum 96% Reflectivity Mirror Diagonal
TeleVueIn StockThis 90° 1.25" mirror-type star diagonal uses enhanced aluminum mirror coatings for a full 95% reflectivity. The mirror is overcoated with quartz f...
View full detailsOriginal price $189.00 - Original price $189.00Original price$189.00$189.00 - $189.00Current price $189.00| / -
Original price $409.00 - Original price $409.00Original price$409.00$409.00 - $409.00Current price $409.00| /
TeleVue Schmidt Cassegrain 2" Everbrite Diagonal Rich Field Kit
TeleVueIn StockThis kit is designed to allow a premium Tele Vue 2" Everbrite diagonal attach to your SCT. This 90° 2” mirror-type star diagonal has Everbrite diel...
View full detailsOriginal price $409.00 - Original price $409.00Original price$409.00$409.00 - $409.00Current price $409.00| / -
Original price $305.00 - Original price $305.00Original price$305.00$305.00 - $305.00Current price $305.00| /
TeleVue 2" Mirror Diagonal With 96% Reflectivity Enhanced Aluminum Coatings And 2" To 1.25" Eyepiece Adapter
TeleVueIn StockThis 90° 2” mirror-type star diagonal has enhanced aluminum mirror coatings for 96% reflectivity. The mirror is overcoated with quartz for long lif...
View full detailsOriginal price $305.00 - Original price $305.00Original price$305.00$305.00 - $305.00Current price $305.00| / -
Original price $640.00 - Original price $640.00Original price$640.00$640.00 - $640.00Current price $640.00| /
Takahashi 4 Turret 1.25" Eyepiece Holder
TakahashiMore on the wayLooking for a quick way to change magnifications and not use a zoom eyepiece? This great accessory from Takahashi might be the ticket.A night of o...
View full detailsOriginal price $640.00 - Original price $640.00Original price$640.00$640.00 - $640.00Current price $640.00| / -
Original price $249.95 - Original price $249.95Original price$249.95$249.95 - $249.95Current price $249.95| /
Celestron 2" Dielectric Star Diagonal With Twist-Lock
CelestronIn StockEnjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings Ensure maximum li...
View full detailsOriginal price $249.95 - Original price $249.95Original price$249.95$249.95 - $249.95Current price $249.95| / -
Original price $925.00 - Original price $925.00Original price$925.00$925.00 - $925.00Current price $925.00| /
Questar 2" Quartz Silver Mirror for 7" Questars
QuestarMore on the wayThis 2" Questar star diagonal allows the use of 2" eyepieces with the 7" Questar Maksutov. Its 1/20th wave first surface quartz mirror has silver m...
View full detailsOriginal price $925.00 - Original price $925.00Original price$925.00$925.00 - $925.00Current price $925.00| / -
Original price $650.00 - Original price $650.00Original price$650.00$650.00 - $650.00Current price $650.00| /
Takahashi 1/10Th Wave Accuracy 2" Compression Ring Diagonal w/ 1.25" Adapter
TakahashiMore on the wayThis 2" diagonal uses a telescope-grade elliptical mirror with a guaranteed 1/10th wave surface accuracy for superb high contrast/high detail lunar...
View full detailsOriginal price $650.00 - Original price $650.00Original price$650.00$650.00 - $650.00Current price $650.00| / -
Original price $322.00 - Original price $322.00Original price$322.00$322.00 - $322.00Current price $322.00| /
TeleVue 1.25" 99 Percent Reflectivity Everbite Mirror, 60 Degree Viewing
TeleVueMore on the wayThis unique 60° viewing angle 1.25" diagonal allows more comfortable extended viewing of objects near the ecliptic (the Moon and planets, among oth...
View full detailsOriginal price $322.00 - Original price $322.00Original price$322.00$322.00 - $322.00Current price $322.00| / -
Original price $79.00 - Original price $79.00Original price$79.00$79.00 - $79.00Current price $79.00| /
iOptron Dielectic Star Diagonal
iOptronMore on the wayUse the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube ...
View full detailsOriginal price $79.00 - Original price $79.00Original price$79.00$79.00 - $79.00Current price $79.00| / -
Original price $395.00 - Original price $395.00Original price$395.00$395.00 - $395.00Current price $395.00| /
Questar 1.25" Mirror Diagonal for Brandon Eyepieces on a 3.5" Questar
QuestarMore on the wayThe Questar #19107 is a mirror-type 90° viewing angle star diagonal for axial viewing with a 3.5" Questar telescope. It connects to the Cassegrain ...
View full detailsOriginal price $395.00 - Original price $395.00Original price$395.00$395.00 - $395.00Current price $395.00| / -
Original price $460.00 - Original price $460.00Original price$460.00$460.00 - $460.00Current price $460.00| /
Questar 45° Image Erecting Prism for Questar 3.5" Scopes Only
QuestarMore on the wayThis premium Questar 45° viewing angle image erecting diagonal fits into the back of any Questar 3.5" scope to provide upright and correctly left-t...
View full detailsOriginal price $460.00 - Original price $460.00Original price$460.00$460.00 - $460.00Current price $460.00| / -
Original price $170.00 - Original price $170.00Original price$170.00$170.00 - $170.00Current price $170.00| /
Takahashi 1.25” Prism Diagonal
TakahashiMore on the wayThis premium 1.25" Takahashi TAKSD1 compression ring prism star diagonal is the diagonal that Takahashi puts with all of their complete telescope s...
View full detailsOriginal price $170.00 - Original price $170.00Original price$170.00$170.00 - $170.00Current price $170.00| /