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Diagonals - 241 - Super Savings! Save up to 34%


Super Savings! Up to 34% off on Diagonals at C Starr. Top brands include Unknown, Astromania, Vixen Optics, Kenko, Cassini, Baoblaze, Homyl, AstroStreet, Alstar, Orion, & SOLOMARK. Hurry! Limited time offers. Offers valid only while supplies last.



MagiDeal For Newtonian Reflecting Telescope Erecting Roof Prism Barlow Lens 2X High Power 1.25'' Interface Optical Glass
MagiDeal For Newtonian Reflecting Telescope Erecting Roof Prism Barlow Lens 2X High Power 1.25" Interface Optical Glass
By Unknown
In Stock
$128.97
$85.98
You Save: 33%

mpn: STK0177003464, ean: 0705220418375,

4.2 out of 5 stars with 32 reviews
You will find what you want in Sports & Outdoors, Home & Kitchen, Beauty, Clothing, Health & Household, Tools & Improvement, Automotive Parts etc.Description: - For Newtonian Reflecting Telescope Eyepiece Erecting Prism 1.25"/31.7mm Star Diagonal Mir...


Astromania 1.25'' 90-degree Erecting Prism optical Prism inside rather than a mirror which makes your image clear and sharp
Astromania 1.25" 90-degree Erecting Prism optical Prism inside rather than a mirror which makes your image clear and sharp
By Astromania
In Stock
$32.99

mpn: SKU_AM_EP1D90, ean: 6970019291093,

Astromania 1.25" 90-degree Erecting Prism. This is an economical 1.25" 90-deg prism diagonal for astronomical telescopes and spotting scopes. With this 90-degree erecting prism transform your telescope into a telescope for nature observation. This is...


Diagonal Prism
Diagonal Prism
By Vixen Optics
In Stock
$74.95

mpn: 3675-04, ean: 4955295367504,

3675 Features: -Accessory Type:Mounts. Dimensions: -Overall Product Weight:0.34...


Kenko 421109 MILTOL PL10mm KF-EP-PL10 Zenith Mirror Kit (Black)
Kenko 421109 MILTOL PL10mm KF-EP-PL10 Zenith Mirror Kit (Black)
By Kenko
In Stock
$75.47

mpn: 421109, ean: 4961607421109,

Zenith Mirror SetsPlossl eyepiece 10mm. Eyepiece holder. Zenith Mirror. ...


Cassini .965-inch Mirror Diagonal
Cassini .965-inch Mirror Diagonal
By Cassini
In Stock
$49.99

mpn: DM965, ean: 0859773004391,

Cassini Mirror diagonals increase the viewing comfort and usability of Refractor Telescopes. True astronomical telescopes will produce an upside down image. No erecting lenses, mirrors, or prisms are added. Having these elements in the telescope can ...


1.25'' Format Mirror Diagonal
1.25" Format Mirror Diagonal
By Cassini
In Stock
$18.95
$12.99
You Save: 31%

mpn: DM125, ean: 0859773004407,

4.6 out of 5 stars with 58 reviews
Cassini Mirror diagonals increase the viewing comfort and usability of Refractor Telescopes. True astronomical telescopes will produce an upside down image. No erecting lenses, mirrors, or prisms are added. Having these elements in the telescope can ...


Baoblaze Diagonal Prism for Telescope Universal 1.25'' Fully Multi-coated High Brightness Clear & Sharp Image
Baoblaze Diagonal Prism for Telescope Universal 1.25" Fully Multi-coated High Brightness Clear & Sharp Image
By Baoblaze
In Stock
$198.37
$130.18
You Save: 34%

mpn: d286255c67d5ee7862e6f052bffdbf81, ean: 0706612558136,

4.7 out of 5 stars with 57 reviews
Description: - 2" Eyepiece 1.25" Astronomy Telescope Erecting Prism Diagonal Mirror 90 Degree. - A more comfortable viewing position and clear image. - Fully Coated:high quality optical glass for maximum brightness. - High Reflectivity:built-in h...


Homyl Telescope Diagonal Prism for Orion Nikon Canon Astronomy Erecting Mirror High-definition Universal
Homyl Telescope Diagonal Prism for Orion Nikon Canon Astronomy Erecting Mirror High-definition Universal
By Homyl
In Stock
$161.17
$111.58
You Save: 31%

mpn: 051600043000662154264, ean: 0706612618465,

4.0 out of 5 stars with 53 reviews
Description: - 2" Eyepiece 1.25" Astronomy Telescope Erecting Prism Diagonal Mirror 90 Degree. - A more comfortable viewing position and clear image. - Fully Coated:high quality optical glass for maximum brightness. - High Reflectivity:built-in h...


MagiDeal 2'' Eyepiece 1.25'' Telescope Erecting Prism Diagonal Zenith Mirror 90 Degree Comfortable Viewing Position
MagiDeal 2" Eyepiece 1.25" Telescope Erecting Prism Diagonal Zenith Mirror 90 Degree Comfortable Viewing Position
By Unknown
In Stock
$182.97
$121.98
You Save: 33%

mpn: 0516000430006UKA, ean: 0706612477253,

4.5 out of 5 stars with 49 reviews
You will find what you want in Sports & Outdoors, Home & Kitchen, Beauty, Clothing, Health & Household, Tools & Improvement, Automotive Parts etc.Description: - 2" Eyepiece 1.25" Astronomy Telescope Erecting Prism Diagonal Mirror 90 Degree. - A more ...


Baoblaze Diagonal Prism for Telescope Erecting Mirror 1.25'' Fully Coated High Reflectivity Clear Image
Baoblaze Diagonal Prism for Telescope Erecting Mirror 1.25'' Fully Coated High Reflectivity Clear Image
By Baoblaze
In Stock
$54.37
$35.68
You Save: 34%

mpn: 5e1ee28db60c3d6838d661cacf9517a9, ean: 0759321313282,

4.1 out of 5 stars with 19 reviews
Description: - 1.25"/31.7mm Astronomy Telescope Erecting Prism Diagonal Mirror 45 Degree. - Fully Coated:high quality optical glass for maximum brightness. - High Reflectivity:built-in high-definition reflective prism, to create a more comfortabl...


Baoblaze Diagonal Prism for Telescope Mirror 0.96'' High Reflectivity Brightness Clear Image
Baoblaze Diagonal Prism for Telescope Mirror 0.96" High Reflectivity Brightness Clear Image
By Baoblaze
In Stock
$54.37
$35.68
You Save: 34%

mpn: c9fece2f048c0f34d1c37b51f728f1a5, ean: 0759321313404,

4.7 out of 5 stars with 17 reviews
Description: - 0.96"/24.4mm Astronomy Telescope Erecting Prism Diagonal Mirror 45 Degree. - Fully Coated:high quality optical glass for maximum brightness. - High Reflectivity:built-in high-definition reflective prism, to create a more comfortabl...


MagiDeal Astronomy Telescope Prism Diagonal Mirror for Celestron Orion Nikon 0.96'' Comfortable Viewing Position
MagiDeal Astronomy Telescope Prism Diagonal Mirror for Celestron Orion Nikon 0.96" Comfortable Viewing Position
By Unknown
In Stock
$47.97
$31.98
You Save: 33%

mpn: 0010001140002UKA, ean: 0707230631874,

4.2 out of 5 stars with 58 reviews
You will find what you want in Sports & Outdoors, Home & Kitchen, Beauty, Clothing, Health & Household, Tools & Improvement, Automotive Parts etc.Description: - 0.96"/24.4mm Astronomy Telescope Erecting Prism Diagonal Mirror 45 Degree. - Fully Coated...


AstroStreet 1.25-Inch Astrophotography Flip Mirror Diagonal
AstroStreet 1.25-Inch Astrophotography Flip Mirror Diagonal
By AstroStreet
In Stock
$99.00

mpn: 462204, ean: 4573272462204,

The Star Gear Original Flip Mirror makes framing and focusing celestial objects for CCD astrophotography as easy as flipping a helicoid![Weight] approximately 280g[Accessories] wrench for adjustment, boxThe Star Gear Original Flip Mirror makes framin...


Astromania 1.25'' 45-degree Diagonal Prism optical Prism inside rather than a mirror which makes your image clear and sharp
Astromania 1.25" 45-degree Diagonal Prism optical Prism inside rather than a mirror which makes your image clear and sharp
By Astromania
In Stock
$27.99

mpn: SKU_AM_DP1D45, ean: 6970019291079,

Whether it's the Moon, Jupiter or a beautiful nebula - in order to enjoy observing at the telescope you should always be comfortable. In many telescopes, that is only possible by using a star diagonal - which directs the image upwards by 45.This Astr...


Alstar 1.25'' 45-degree Diagonal Prism optical Prism inside rather than a mirror which makes your image clear and sharp
Alstar 1.25" 45-degree Diagonal Prism optical Prism inside rather than a mirror which makes your image clear and sharp
By Alstar
In Stock
$27.99

mpn: SKU_AM_DP1D45AR, ean: 6970019299761,

Whether it's the Moon, Jupiter or a beautiful nebula - in order to enjoy observing at the telescope you should always be comfortable. In many telescopes, that is only possible by using a star diagonal - which directs the image upwards by 45.This Alst...


MagiDeal 1.25'' Telescope Erecting Prism Eyepiece Universal Star Diagonal Mirror 45 Degree Slope Design
MagiDeal 1.25'' Telescope Erecting Prism Eyepiece Universal Star Diagonal Mirror 45 Degree Slope Design
By Unknown
In Stock
$50.97
$33.98
You Save: 33%

mpn: e61d41f91c4723b202034593ffe30af2, ean: 0707230631805,

4.8 out of 5 stars with 26 reviews
You will find what you want in Sports & Outdoors, Home & Kitchen, Beauty, Clothing, Health & Household, Tools & Improvement, Automotive Parts etc.Description: - 1.25"/31.7mm Astronomy Telescope Erecting Prism Diagonal Mirror 45 Degree. - Fully Coated...


Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal
Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal
By Orion
In Stock
$97.70

mpn: 8880, ean: 0759270088804,

The Orion 1.25" Dielectric Mirror Star Diagonal is an ideal choice for refractor and Cassegrain telescope owners who wish to obtain the brightest views possible while using a diagonal. This high-quality mirror diagonal features sophisticated, lab-tes...


Alstar 1.25'' 90-degree Erecting Prism optical Prism inside rather than a mirror which makes your image clear and sharp
Alstar 1.25" 90-degree Erecting Prism optical Prism inside rather than a mirror which makes your image clear and sharp
By Alstar
In Stock
$32.99

mpn: SKU_AM_EP1D90AR, ean: 6970019299792,

1.25" 90-degree diagonal features an image erecting prism that allows you to look into a telescope at a 90 degree angle. It produces an image that is oriented properly, which means that the image is upright and correct from left to right (i.e., a cor...


Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with 2inch-1.25inch Adapter - ENHANCED 99% REFLECTIVITY for Maximum View Brightness and Sharpness-Carbon Fiber Side Plates
Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror with 2inch-1.25inch Adapter - ENHANCED 99% REFLECTIVITY for Maximum View Brightness and Sharpness-Carbon Fiber Side Plates
By SOLOMARK
In Stock
$96.99

mpn: QHDM, ean: 0747380997611,

If you are interested in making nighttime viewing orientations through a refractor telescope, the Solomark Explorer was designed with you in mind. If you are looking for the most clear view from your powerful arms, along with durability, then the So...


Astromania 1.25'' 90-degree Diagonal Mirror - More comfortable viewing orientation as you observe from above, filter thread for any 1.25'' filter and accepts standard 1.25'' eyepieces
Astromania 1.25" 90-degree Diagonal Mirror - More comfortable viewing orientation as you observe from above, filter thread for any 1.25" filter and accepts standard 1.25" eyepieces
By Astromania
In Stock
$21.99

mpn: SKU_AM_DM1D90, ean: 6970019291086,

Whether it's the Moon, Jupiter or a beautiful nebula - in order to enjoy observing at the telescope you should always be comfortable. In many telescopes, that is only possible by using a star diagonal - which directs the image upwards by 90.This Astr...



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