Frontpage > Product > Alstar 1.25" 45-Degree Diagonal Prism Optical Prism Inside Rather Than A Mirror Which Makes Your Ima...

Alstar 1.25" 45-Degree Diagonal Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp

Asin: B074DQP34N   |   Model: SKU_AM_DP1D45AR   |   PartNumber: SKU_AM_DP1D45AR   |   Ean: 6970019299761


As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional.

More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..
Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..
This Is A Great Diagonal For Daytime Terrestrial Use And Night Time Astronomy Applications For Telescopes Or Spotting Scopes..
1.25" 45-Degree Mirror Star Diagonal For Any Telescope With 1.25" Connector (Not Suitable For Newtonians)..

Features

  • High quality optical Prism inside rather than a mirror which makes your image clear and sharp.
  • 1.25 45-degree mirror star diagonal for any telescope with 1.25 connector (not suitable for Newtonians).
  • More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
  • This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.
  • Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
  • See more on Amazon...

Brand: A ALSTAR   |   Manufacturer: Alstar

Dimensions: 2.80 x 4.40 x 2.10 Inches   |   Weight: 0.20 Pounds

Amazon Price: $27.97 | as of 04/28/2024 (5:40pm pst) *DETAILS
Availability: In Stock

See On Amazon




Similar To Alstar 1.25 45Degree Diagonal Prism

  #1

SVBONY SV188P Dielectric Mirror Star Diagonal, 1.25 Inch 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings

Asin: B08QRY4V97   |   Model: FF9171B   |   PartNumber: FF9171B

90 Degree Viewing Angle; Diagonal Reflects The Telescope’S Light Path 90 Degree To Provide A More Comfortable Viewing Angle; Best For Observing Objects Overhead.
Brass Compression Ring; Built In Brass Ring And Thumbscrew Accessories Avoid Eyepiece To Rotate During Adjustments; Effortless Fixes More Firmly And Will Not Scratch Your Eyepieces Barrels.
Correct Upside Down And Left Right Reversed Image; The View Image Is Upright; But Left And Right Reversed If Use The 90 Degrees To Your Telescope.
1.25 Inches Nosepiece Fits 1.25 Inches Telescopes; Accepts Standard 1.25In Filters; Eyepieces; Barlow Lenses And Other Accessories With A 1.25In Insert Barrel.

Features

  • Dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing
  • 1.25 inches nosepiece fits 1.25 inches telescopes; accepts standard 1.25in filters; eyepieces; Barlow lenses and other accessories with a 1.25in insert barrel
  • 90 degree viewing angle; diagonal reflects the telescope s light path 90 degree to provide a more comfortable viewing angle; best for observing objects overhead
  • Correct upside down and left right reversed image; the view image is upright; but left and right reversed if use the 90 degrees to your telescope
  • Brass compression ring; Built in brass ring and thumbscrew accessories avoid eyepiece to rotate during adjustments; effortless fixes more firmly and will not scratch your eyepieces barrels
  • See more on Amazon...

Brand: SVBONY   |   Manufacturer: SVBONY

Dimensions: 2.40 x 4.40 x 3.30 Inches

Warranty: We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours

Amazon Price: $42.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #2

SVBONY SV221 90 Degree Diagonal Mirror, Telescope Diagonal 1.25 inches with Brass Compression Rings, Telescope Accessory for Refractor Telescope

Asin: B0CB66XWBK   |   Model: FCAW9178A   |   PartNumber: FCAW9178A

With A Brass Pressure Ring; The Sv221 Diagonal Mirror Has A Brass Pressure Ring; Which Can Prevent Surface Damage And Scratch Marks When The Eyepiece Is Used With The Sv221.
Internal Extinction Design; The Sv221 Diagonal Mirror Has Internal Extinction Treatment; And The Acquired Image Is Clearer And Brighter.
With Filter Thread; The Sv221 Diagonal Mirror Has M28.5X0.6Mm Filter Thread; Which Supports The Connection Of 1.25 Inches Filter.
90 Degrees Design; The Sv221 Diagonal Mirror 90 Degrees Deflection Angle Design; You Don't Have To Bend Over When Performing Visual Observation; And The Observation Experience Is More Comfortable.
Supports 1.25-Inch Filters Features Internal Extinction Treatment And Supports The Connection Of 1.25-Inch Filters; Offering Versatility For Various Observations.
1.25 Inches Diameter; The Sv221 Diagonal Mirror Has A Diameter Of 1.25 Inches; Which Can Be Applied To A 1.25 Inches Telescope And A 1.25 Inches Eyepiece.

Features

  • Enhanced Aluminum Die; the SV221 diagonal mirror is designed with enhanced aluminum mold; which has higher light transmittance and clearer vision
  • 1.25 inches diameter; the SV221 diagonal mirror has a diameter of 1.25 inches; which can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece
  • With a brass pressure ring; the SV221 diagonal mirror has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the SV221
  • Supports 1.25-inch filters features internal extinction treatment and supports the connection of 1.25-inch filters; Offering versatility for various observations
  • With filter thread; the SV221 diagonal mirror has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter
  • 90 degrees design; the SV221 diagonal mirror 90 degrees deflection angle design; you don't have to bend over when performing visual observation; and the observation experience is more comfortable
  • Internal extinction design; the SV221 diagonal mirror has internal extinction treatment; and the acquired image is clearer and brighter
  • See more on Amazon...

Brand: SVBONY   |   Manufacturer: SVBONY

Dimensions: 2.36 x 3.94 x 1.97 Inches   |   Weight: 0.20 Pounds

Warranty: We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours

Amazon Price: $19.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #3

Astromania 1.25" 90-Degree Erecting Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp

Asin: B0140U9XXK   |   Model: SKU_AM_EP1D90   |   PartNumber: SKU_AM_EP1D90   |   Ean: 6970019291093

The Prism Gives You A Bright And Clear Picture: The Prism Is Made Of Genuine Optically Processed Bk7 Glass, High Quality Optical Prism Inside Rather Than A Mirror Which Makes Your Image Clear And Sharp. The Amici Prism Looks As Beautiful As Binoculars, But You Can Zoom In Much Higher With Your Eyepieces..
The Prism Housing Is Made Of Precision Molded Abs Plastic And The Barrels Are Made Of Metal - Which Ensures A Tight Fit And Long Grip. Use A Clamping Screw Made Of Aluminum To Fix Your Eyepiece. So You Can Even Look Sideways Through Your Telescope - The Eyepiece Will Safely Stay Put And Not Fall Out. From Now On Nature Lies At Your Feet: Even If It Is Far Away..
Simply Insert The Erecting Prism Into The 1.25 "Focuser And Enjoy Upright And Right-Angled Images With Your Eyepieces - Watch Birds, Deer At The Edge Of The Forest, The Summit Cross On A Mountain Or A Cruise Ship Far Out On The Sea..
Comfortable Observation With 90-Degree: Look Pleasantly From Above Into Your Eyepiece, Filter Thread For Any 1.25" Filter And Accepts Standard 1.25" Eyepieces..

Features

  • Typically, you see the picture standing upside down. But what if you also want to observe nature? With this 90-degree erecting prism transform your telescope into a telescope for nature observation with upright and left-right corrected image. This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.
  • Comfortable observation with 90-degree: Look pleasantly from above into your eyepiece, filter thread for any 1.25 filter and accepts standard 1.25 eyepieces.
  • The prism gives you a bright and clear picture: The prism is made of genuine optically processed BK7 glass, high quality optical prism inside rather than a mirror which makes your image clear and sharp. The Amici prism looks as beautiful as binoculars, but you can zoom in much higher with your eyepieces.
  • Simply insert the erecting prism into the 1.25 focuser and enjoy upright and right-angled images with your eyepieces - watch birds, deer at the edge of the forest, the summit cross on a mountain or a cruise ship far out on the sea.
  • The prism housing is made of precision molded ABS plastic and the barrels are made of metal - which ensures a tight fit and long grip. Use a clamping screw made of aluminum to fix your eyepiece. So you can even look sideways through your telescope - the eyepiece will safely stay put and not fall out. From now on nature lies at your feet: even if it is far away.
  • See more on Amazon...

Brand: Astromania   |   Manufacturer: Astromania

Dimensions: 2.11 x 4.42 x 2.80 Inches   |   Weight: 0.29 Pounds

Amazon Price: $32.99 | as of 04/28/2024 (5:40pm pst) *DETAILS
Used Price: $31.34

See On Amazon




  #4

Celestron 1.25" Star Diagonal, Black (94115-A)

Asin: B00009X3UO   |   Model: 94115-A   |   PartNumber: 94115-A   |   Ean: 0050234941150   |   UPC: 050234941150

Country Of Origin: China.
Product Type: Binocular.
Item Package Dimensions:4.5"L X2.25"W X3"H.

Features

  • Fits Telescopes With 1.25 Focusers Or Visual Backs, 90 Viewing Angle, Best For Observing Objects Overhead
  • Item Package Dimensions:4.5L X2.25W X3H
  • Country Of Origin: China
  • Product Type: Binocular
  • See more on Amazon...

Brand: Celestron   |   Manufacturer: Celestron Acquisition LLC

Dimensions: 3.00 x 4.50 x 2.25 inches   |   Weight: 0.35 pounds

Amazon Price: $50.39 | as of 04/28/2024 (5:40pm pst) *DETAILS
Used Price: $38.90

See On Amazon




  #5

SVBONY 1.25 inches 90 Degree Dielectric Mirror Diagonal Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

Asin: B07GPMX7BN   |   Model: FUSF9171A   |   PartNumber: FUSF9171A   |   Ean: 0794604981253   |   UPC: 794604981253

90 Degree Viewing Angle; Provide A More Comfortable Observation Angle To Observe The Stars Above The Head.
Body Material Is Full Metal; With Dust Cover Always Keep Your Lens Clear Prolong Life.
Compatible With Refractors And Catadioptric Telescopes; Not Suitable For Reflector Telescopes.
Standard 1.25 Inches Diameter Can Be Used With 1.25 Inches Telescope Accessories Such As Eyepieces And Barlow Lens.

Features

  • The 90% reflectivity flat mirror can reduce light loss and make the field of view clearer and sharper
  • Standard 1.25 inches diameter can be used with 1.25 inches telescope accessories such as eyepieces and barlow lens
  • 90 degree viewing angle; provide a more comfortable observation angle to observe the stars above the head
  • Compatible with refractors and catadioptric telescopes; not suitable for reflector telescopes
  • Body material is full metal; With dust cover always keep your lens clear prolong life
  • See more on Amazon...

Brand: SVBONY   |   Manufacturer: SVBONY

Dimensions: 2.20 x 5.50 x 3.40 inches   |   Weight: 0.33 Pounds

Warranty: We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours

Amazon Price: $31.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #6

SVBONY Diagonal Adapter Zenith Diagonal Mirror Prism 1.25inch 45 Degree Erecting Prism Optical Prism Inside for Astronomical Telescope Eyepiece

Asin: B071CKG619   |   Model: FUSW2578A   |   PartNumber: FUSW2578A   |   Ean: 0714559073797   |   UPC: 714559073797

Standard 1.25 " Diameter For Filter Thread For Any 1.25" Filter;Fits For The Standard 1.25" Telescope Eyepiece.
Easily Correct Upside Down And Left-Right Reversed Image; It Produces An Image That Is Oriented Properly; Which Means The Image Is Upright And Correct From Left To Right; Allow You View Things During Daytime In Correct Position;It's A Great Birthday Christmas Gift.
Zenith Mirror Has Dust Cover Keeping The Lens Clean,So That Provides Clear And Sharp Images And Extends The Service Life.
High Optical Lens Transparency;The Large Quality Prism Allows More Light Transmission;So That Delievers A Clear Image.

Features

  • High-quality prism diagonal provides a comfortable and sharp 45 degree viewing orientation for great daytime terrestrial views and night time astronomy applications for telescopes
  • High optical lens transparency;the large quality prism allows more light transmission;so that delievers a clear image
  • Standard 1.25 diameter for filter thread for any 1.25 filter;fits for the standard 1.25 telescope eyepiece
  • Zenith mirror has dust cover keeping the lens clean,so that provides clear and sharp images and extends the service life
  • Easily correct upside down and left-right reversed image; It produces an image that is oriented properly; which means the image is upright and correct from left to right; allow you view things during daytime in correct position;It's a great birthday christmas gift
  • See more on Amazon...

Brand: SVBONY   |   Manufacturer: SVBONY

Dimensions: 2.16 x 3.70 x 2.36 Inches   |   Weight: 0.18 pounds

Warranty: We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours

Amazon Price: $18.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #7

CELESTRON Dielectric Star Diagonal 1.25" with Twist Lock

Asin: B07VRSL37R   |   Model: 93571   |   PartNumber: 93571   |   Ean: 0050234935715   |   UPC: 050234935715

58 Layers Of Dielectric Coatings Provide An Over 99% Reflective Surface, Ensuring The Maximum Amount Of Light Collected By The Telescope Reaches The Eyepiece.
Accepts Standard Eyepieces, Barlow Lenses, Threaded Filters, And Other Accessories With A 1. 25” Barrel.
Twist-Lock Keeps The Eyepiece Centered In The Diagonal To Provide Better Optical Alignment.
Provides A 90° Viewing Angle, Perfect For More Comfortable Viewing Through Refractor And Cassegrain-Type Telescopes.

Features

  • Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings
  • Provides a 90 viewing angle, perfect for more comfortable viewing through refractor and cassegrain-type telescopes
  • 58 layers of dielectric coatings provide an over 99% reflective surface, ensuring the maximum amount of light collected by the telescope reaches the eyepiece
  • Twist-lock keeps the eyepiece centered in the diagonal to provide better optical alignment
  • Accepts standard eyepieces, Barlow lenses, threaded filters, and other accessories with a 1. 25 Barrel
  • See more on Amazon...

First Available: 07/03/2019

Brand: Celestron   |   Manufacturer: Celestron

Dimensions: 3.80 x 5.20 x 4.30 inches   |   Weight: 0.60 Pounds

Warranty: 2-YEAR WARRANTY

Amazon Price: $144.95 | as of 04/28/2024 (5:40pm pst) *DETAILS
List Price: $154.95

See On Amazon




  #8

Astromania 1.25" 45-Degree Diagonal Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp

Asin: B0140U9U1A   |   Model: SKU_AM_DP1D45   |   PartNumber: SKU_AM_DP1D45   |   Ean: 6970019291079

Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..
1.25" 45-Degree Mirror Star Diagonal For Refractor Telescopes With 1.25" Connector (Not Recommended For Reflectors)..
This Is A Great Diagonal For Daytime Terrestrial Use And Night Time Astronomy Applications For Telescopes Or Spotting Scopes..
More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..

Features

  • High quality optical Prism inside rather than a mirror which makes your image clear and sharp.
  • More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
  • Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
  • This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.
  • 1.25 45-degree mirror star diagonal for refractor telescopes with 1.25 connector (not recommended for reflectors).
  • See more on Amazon...

Brand: Astromania   |   Manufacturer: Astromania

Dimensions: 2.11 x 4.42 x 2.80 Inches   |   Weight: 0.20 Pounds

Amazon Price: $27.99 | as of 04/28/2024 (5:40pm pst) *DETAILS
Used Price: $26.59

See On Amazon




  #9

SVBONY SV221 Diagonal Mirror 1.25 inches, 45-Degree Correct-Image Prism Diagonal Provides Sharp Views That are Right-Side-Up and Correct Left-to-Right for Refractor Telescope

Asin: B0CB6527DG   |   Model: FCAW9178B   |   PartNumber: FCAW9178B

Brass Lock Screw And Compression Rings; Equipped With Brass Lock Screw And Compression Rings For Precise Connection And Protection Against Scratches And Damages.
Wide Compatibility; Designed For Refractor Telescopes And Some Catadioptric Telescopes Like Schmidt-Cassegrain And Maksutov-Cassegrain; Not Compatible With Newtonian/Dob Reflector Telescopes.
Clear Aperture; Offers A Clear Aperture Of 19Mm; Ensuring Clear Observation Results.
Dustproof Design; Comes With A Dustproof Cover To Keep The Lens Clean.
Erect Image Observation; Provides Erect Image Observation Without Image Inversion.
Full Field Coating; Features Multi-Coating For Comfortable Viewing Experience.
Supports 1.25-Inch Filters; Featuring Multi-Coated (Mc) Surfaces; And Supports The Connection Of 1.25-Inch Filters For Versatile Observations.
Screw Clamping System; Features A Screw Clamping System For Secure And Easy Usage.
Innovative Design; The Main Mirror Housing Is Made Of Precision Molded Abs Plastic; And The Two End Barrels Are Precision Machined From Aluminum.

Features

  • Clear views; 45-degree correct-image prism diagonal provides sharp views
  • Innovative design; the main mirror housing is made of precision molded ABS plastic; and the two end barrels are precision machined from aluminum
  • Brass lock screw and compression rings; equipped with brass lock screw and compression rings for precise connection and protection against scratches and damages
  • Supports 1.25-inch filters; featuring multi-coated (MC) surfaces; and supports the connection of 1.25-inch filters for versatile observations
  • Erect Image observation; provides erect image observation without image inversion
  • Full field coating; features multi-coating for comfortable viewing experience
  • Clear Aperture; offers a clear aperture of 19mm; ensuring clear observation results
  • Dustproof design; comes with a dustproof cover to keep the lens clean
  • Screw clamping system; features a screw clamping system for secure and easy usage
  • Wide compatibility; designed for refractor telescopes and some catadioptric telescopes like schmidt-cassegrain and maksutov-cassegrain; not compatible with newtonian/dob reflector telescopes
  • See more on Amazon...

Brand: SVBONY   |   Manufacturer: SVBONY

Dimensions: 2.60 x 3.94 x 2.13 Inches   |   Weight: 0.17 Pounds

Warranty: We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours

Amazon Price: $23.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #10

1.25 inch 90 Degree Diagonal Adapter Erecting Prism Optical Prism Diagonal Mirror for Refracting Eyepiece Lens and Astronomical Telescope

Asin: B0CKWLVM8Y   |   Model: Seroundert4iok7yfzs   |   PartNumber: Seroundert4iok7yfzs

Fully Coated Lens: Zenith Lenses Are Equipped With Fully Coated Lenses With A Dust Cover To Keep The Lenses Clean And Make Viewing Images Clearer..
Multifunctional Application: This Diagonal Mirror Is Perfect For Celestial Observation And Can Also Be Used For Terrestrial Observation. By Using The Zenith Mirror, Users Can Easily Observe The Sky Or The Ground..
Easy Installation: This Zenith Mirror Is Easy To Install And Use. Simply Insert One End Into The 0.965 Inch Telescope And Screw The Other End To Fix The 1.25 Inch Eyepiece..
90 Degree Angle: This 90 Degree Diagonal Zenith Mirror Works With Refracting Telescopes To Hold The Image Upright, Albeit Upside Down From Side To Side, Without Interfering With Astronomical Observations..

Features

  • APPLICATION: This zenith mirror is suitable for 1.25 inch eyepieces and 0.965 inch telescope focusers. Designed for refracting telescopes, not for reflecting telescopes.
  • 90 DEGREE ANGLE: This 90 degree diagonal zenith mirror works with refracting telescopes to hold the image upright, albeit upside down from side to side, without interfering with astronomical observations.
  • FULLY COATED LENS: Zenith lenses are equipped with fully coated lenses with a dust cover to keep the lenses clean and make viewing images clearer.
  • EASY INSTALLATION: This zenith mirror is easy to install and use. Simply insert one end into the 0.965 inch telescope and screw the other end to fix the 1.25 inch eyepiece.
  • MULTIFUNCTIONAL APPLICATION: This diagonal mirror is perfect for celestial observation and can also be used for terrestrial observation. By using the zenith mirror, users can easily observe the sky or the ground.
  • See more on Amazon...

Brand: Serounder   |   Manufacturer: Serounder

Dimensions: 0.00 x 0.00 x 0.00 Inches

Amazon Price: $14.57 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #11

Alstar 1.25" 90-Degree Diagonal Mirror

Asin: B074DR3LGC   |   Model: SKU_AM_DM1D90AR   |   PartNumber: SKU_AM_DM1D90AR   |   Ean: 6970019299785

More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..
1.25" 90-Degree Mirror Star Diagonal For Any Telescope With 1.25" Connector (Not Suitable For Newtonians)..
Useful For Refractor And Cassegrain Telescopes - Not Recommended For Reflectors..
Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..

Features

  • Wide 90 degree angle: You can view correct image from refractor telescope stand and just look down with a comfortable angle.
  • Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
  • More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
  • Useful for refractor and Cassegrain telescopes - not recommended for reflectors.
  • 1.25 90-degree mirror star diagonal for any telescope with 1.25 connector (not suitable for Newtonians).
  • See more on Amazon...

Brand: A ALSTAR   |   Manufacturer: Alstar

Dimensions: 2.80 x 4.40 x 2.10 Inches   |   Weight: 0.25 Pounds

Amazon Price: $21.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #12

William Optics 1.25" 45-deg Erecting Prism Diagonal

Asin: B005DFVPUG   |   Ean: 0962392011821   |   UPC: 962392011821

Features

Brand: William Optics   |   Manufacturer: ARBrend

Amazon Price: $105.80 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #13

Astromania 2" 45-Degree Erecting Prism Diagonal for Telescope

Asin: B01B2OR23U   |   Model: SKU_AM_DP2D45   |   PartNumber: SKU_AM_DP2D45   |   Ean: 6970019292953

Internally Matte Blackened And Threaded For No Internal Stray Light Reflection..
Entirely Aluminum, Black Anodized, Smooth Finish. If There Is Any Problem Of Focusing Due To The Light Path For A Few Telescopes, Please Feel Free To Contact Us For Help..
1.25" Adapter With Brass Compression Ring Included..
High Accuracy And High Light Reflection Prism..

Features

  • Image erecting BAK4 prism with anti-reflection coating.
  • High accuracy and high light reflection prism.
  • Internally matte blackened and threaded for no internal stray light reflection.
  • 1.25 adapter with brass compression ring included.
  • Entirely aluminum, black anodized, smooth finish. If there is any problem of focusing due to the light path for a few telescopes, please feel free to contact us for help.
  • See more on Amazon...

Brand: Astromania   |   Manufacturer: Astromania

Dimensions: 3.80 x 7.23 x 4.87 Inches   |   Weight: 1.19 Pounds

Amazon Price: $187.99 | as of 04/28/2024 (5:40pm pst) *DETAILS
List Price: $213.99

See On Amazon




  #14

Astromania 1.25" 45-Degree Diagonal Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp

Asin: B073QNSV3X   |   Model: SKU_AM_DP1D452   |   PartNumber: SKU_AM_DP1D452   |   Ean: 6970019299082

Protective Coating On The Mirror To Ensure A Long Life, Metal Barrel - For Secure Seating In The Focuser..
1.25" 45-Degree Mirror Star Diagonal For Refractor Telescopes With 1.25" Connector (Not Recommended For Reflectors)..
This Is A Great Diagonal For Daytime Terrestrial Use And Night Time Astronomy Applications For Telescopes Or Spotting Scopes..
More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..

Features

  • High quality optical Prism inside rather than a mirror which makes your image clear and sharp.
  • More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
  • Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
  • This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes.
  • 1.25 45-degree mirror star diagonal for refractor telescopes with 1.25 connector (not recommended for reflectors).
  • See more on Amazon...

Brand: Astromania   |   Manufacturer: Astromania

Dimensions: 2.11 x 4.42 x 2.80 inches   |   Weight: 0.25 Pounds

Amazon Price: $27.99 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #15

45 Degree Diagonal Prism 1.25 with Wide Viewing and More Light Transmission for Astronomical Telescope

Asin: B0CT92XX23   |   Model: Sanpyl6h2wd1ba8k   |   PartNumber: Sanpyl6h2wd1ba8k

[Clear Image] With Its All Positive Imaging Design, This Diagonal Adapter Mirror Prism Provides Correct And Upright Images, Making It Ideal For Both Astronomical And Land Observations..
[Excellent Lens] Made With Excellent Optical Glass, This Diagonal Mirror Prism Provides Clear And Incisive Images, Ensuring An Enhanced Viewing Experience..
[Dust Proof Cover] Equipped With Dustproof Covers, This Diagonal Mirror Prism Keeps The Lens Clean And Protected, Ensuring Clear Viewing And Long Term Use..
[More Light Transmission] The 45 Degree Dielectric Mirror Coating Allows For Maximum Light Transmission, Delivering Bright And Vivid Images..

Features

  • [WIDE VIEWING] Enjoy a wide 45 degree viewing angle with this 1.25 inch diagonal adapter mirror prism, perfect for observing celestial objects and terrestrial views.
  • [MORE LIGHT TRANSMISSION] The 45 degree dielectric mirror coating allows for maximum light transmission, delivering bright and vivid images.
  • [CLEAR IMAGE] With its all positive imaging design, this diagonal adapter mirror prism provides correct and upright images, making it ideal for both astronomical and land observations.
  • [DUST PROOF COVER] Equipped with dustproof covers, this diagonal mirror prism keeps the lens clean and protected, ensuring clear viewing and long term use.
  • [EXCELLENT LENS] Made with excellent optical glass, this diagonal mirror prism provides clear and incisive images, ensuring an enhanced viewing experience.
  • See more on Amazon...

Brand: Sanpyl   |   Manufacturer: Sanpyl

Dimensions: 6.00 x 11.00 x 8.00 Inches

Amazon Price: $13.21 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #16

114az -sr 90 Degree Erect Image Diagonal, Telescope 90 Degree Diagonal-Acouto 1.25inch 45-Degree 31.7mm Erect Image Diagonal Mirror Astronomical Telescope Eyepiece Accessory

Asin: B07MSMCKSN   |   Ean: 0719527375927   |   UPC: 719527375927

Wide 45 Degree Angle Makes You View Correct Image From Refractor Telescope Stand And Just Look Down With A Comfortable Angle..
Comes With Dust Cover To Keep Your Lens Clear, Easy To Install And Use..
Plastic Body With Optical Glass Lens, Providing Clear And Sharp Image..
Fits For 1.25Inch Telescope Eyepiece And Focuser. Work With Refractor And Catadioptric Telescopes..

Features

  • This diagonal can correct upside down and left-right reversed image easily, which allows you view things during daytime in correct position.
  • Fits for 1.25inch telescope eyepiece and focuser. Work with Refractor and catadioptric telescopes.
  • Wide 45 degree angle makes you view correct image from refractor telescope stand and just look down with a comfortable angle.
  • Plastic body with optical glass lens, providing clear and sharp image.
  • Comes with dust cover to keep your lens clear, easy to install and use.
  • See more on Amazon...

Brand: Acouto   |   Manufacturer: Acouto

Dimensions: 1.57 x 3.15 x 1.57 Inches   |   Weight: 0.20 Pounds

Amazon Price: $19.30 | as of 04/28/2024 (5:40pm pst) *DETAILS
List Price: $25.12

See On Amazon




  #17

1.25inch 45 Degree Diagonal Adapter Prism for Astronomical Telescope, Wide Viewing, More Light Transmission, Clear Image with Dust Proof Cover and Excellent Lens

Asin: B0CJVP4DJQ   |   Model: ciciglowbg3keh1n6s   |   PartNumber: ciciglowbg3keh1n6s

[Clear Image] With Its All Positive Imaging Design, This Diagonal Adapter Prism Provides Correct And Upright Images, Making It Ideal For Both Astronomical And Land Observations..
[Excellent Lens] Made With Excellent Optical Glass, This Diagonal Prism Provides Clear And Incisive Images, Ensuring An Enhanced Viewing Experience..
[Dust Proof Cover] Equipped With Dustproof Covers, This Diagonal Prism Keeps The Lens Clean And Protected, Ensuring Clear Viewing And Long Term Use..
[More Light Transmission] The 45 Degree Dielectric Mirror Coating Allows For Maximum Light Transmission, Delivering Bright And Vivid Images..

Features

  • [WIDE VIEWING] Enjoy a wide 45 degree viewing angle with this 1.25 inch diagonal adapter prism, perfect for observing celestial objects and terrestrial views.
  • [MORE LIGHT TRANSMISSION] The 45 degree dielectric mirror coating allows for maximum light transmission, delivering bright and vivid images.
  • [CLEAR IMAGE] With its all positive imaging design, this diagonal adapter prism provides correct and upright images, making it ideal for both astronomical and land observations.
  • [DUST PROOF COVER] Equipped with dustproof covers, this diagonal prism keeps the lens clean and protected, ensuring clear viewing and long term use.
  • [EXCELLENT LENS] Made with excellent optical glass, this diagonal prism provides clear and incisive images, ensuring an enhanced viewing experience.
  • See more on Amazon...

Brand: ciciglow   |   Manufacturer: ciciglow

Dimensions: 0.00 x 0.00 x 0.00 Inches

Amazon Price: $16.24 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #18

1.25 Inch Diagonal Prism, 45 Degrees Diagonal Mirror Prism Image Correction with 2 Dust Covers, Optical Glass Diagonal Prism for Eyepieces, Telescope Focusers

Asin: B0B5LYW2GT

Dust Cover: The 45 Degrees Diagonal Mirror Prism Comes With A Dust Cover To Keep The Lens Clean At All Times, Extending Its Lifespan..
1.25 Inch Diameter: 45 Degrees Zenith Mirror Is Suitable For 1.25 Inch Eyepieces And Telescope Focusers, Easy To Use Without Complicated Operations..
Durable Material: The 1.25 Inch 45 Degrees Diagonal Prism Is Made Of Plastic, Optical Glass Lens, Providing Clear And Acuminate Images..
Wide 45 Degrees Angle: The 1.25 Inch Diagonal Prism Is Designed With A 45 Degrees Angle, Allowing You To View The Correct Image From The Refracting Telescope Mount And Look Down At A Comfortable Angle..

Features

  • Image Correction: 1.25 inch diagonal prism easily corrects upside down and left right reversed images, allowing you to see things in the correct position during the day.
  • Wide 45 Degrees Angle: The 1.25 inch diagonal prism is designed with a 45 degrees angle, allowing you to view the correct image from the refracting telescope mount and look down at a comfortable angle.
  • Dust Cover: The 45 degrees diagonal mirror prism comes with a dust cover to keep the lens clean at all times, extending its lifespan.
  • Durable Material: The 1.25 inch 45 degrees diagonal prism is made of plastic, optical glass lens, providing clear and acuminate images.
  • 1.25 Inch Diameter: 45 degrees zenith mirror is suitable for 1.25 inch eyepieces and telescope focusers, easy to use without complicated operations.
  • See more on Amazon...

Brand: Pomya   |   Manufacturer: Pomya

Amazon Price: $20.39 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon




  #19

Alstar 70mm Guidescope - Bundle with - 1.25" 45 Diagonal Mirror

Asin: B0D29136ZF

Mini-Guide Tube To Quickly Find Objects And Guiding Stars, Designed Both For Visual, As Well As For Photographic Use. 400Mm Focal Length. With Bright, Wide-Field Optics Puts Numerous Potential Guide Stars In View So You'll Never Have To Search For One!.
1.25" 45-Degree Mirror Star Diagonal For Any Telescope With 1.25" Connector (Not Suitable For Newtonians)..
More Comfortable Viewing Orientation As You Observe From Above, Filter Thread For Any 1.25" Filter. Accepts Standard 1.25" Eyepieces..
Have A Built-In Worm-Focuser With Brass Compression Ring And 2 Thumbscrews,90Mm Focusing Range (10Mm Focusing Range With Micro-Focusing Helical Focuser, The Rest Is By A Fixable, Scaled Drawtube) Is Made Possible By An Extremely Precise Focus Adjustment..

Features

  • Take any 1.25 inch eyepieces in your collection, worm-focuser: fast focusing. Prevents rotation of the camera and eyepiece. Or use it as a comfortable, large viewfinder to waste less time finding objects in visual observation. It comes with matching pipe clamps and a Synta-style mounting plate to make assembly and installation as easy as possible.
  • Have a built-in worm-focuser with Brass Compression Ring and 2 thumbscrews,90mm focusing range (10mm focusing range with micro-focusing Helical focuser, the rest is by a fixable, scaled drawtube) is made possible by an extremely precise focus adjustment.
  • Mini-guide tube to quickly find objects and guiding stars, designed both for visual, as well as for photographic use. 400mm focal length. With bright, wide-field optics puts numerous potential guide stars in view so you'll never have to search for one!
  • More comfortable viewing orientation as you observe from above, filter thread for any 1.25 filter. Accepts standard 1.25 eyepieces.
  • 1.25 45-degree mirror star diagonal for any telescope with 1.25 connector (not suitable for Newtonians).
  • See more on Amazon...

Brand: A ALSTAR

Amazon Price: $176.97 | as of 04/28/2024 (5:40pm pst) *DETAILS

See On Amazon





Looking For Something Else? Search

Home & Garden


Home Improvement


Industrial


Electronics


Office


Car & Automotive


Sporting Goods


Beauty Supplies


Health & Personal Care


Fashion


Toys and Hobby



Additional Categories


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Certain content that appears on GistGear.com comes from Amazon services llc. This content is provided 'as is' and is subject to change or removal at any time.
Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Amazon product prices and availability are accurate as of the date/time indicated and are subject to change.
As an Amazon Associate we earn from qualifying purchases.