Best telescope diagonals - Buying Guide
Last Updated: 05/02/2024
Share on
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.
#1
SVBONY Dielectric Mirror Diagonal Bundle with Eyepiece Adapter
Asin: B0D1VHBFD8
Both Sizes Of Eyepieces May Be Used And Are Protected From Dings And Scratches That Would Result From A Standard Set-Screw, This 2" Diagonal Works With Any Refractor That Accepts A 2" Star Diagonals, It Can Also Be Used With Schmidt-Cassegrain Or Maksutov-Cassegrain With An Optional 2 Inches Visual Back (See Below).
Sv159 Eyepiece Adapter Is An Anodized Aluminum Adapter Sct To 2-Inch Eyepiece Adapter For All Schmidt-Cassegrains Telescopes; With Thread On The Bottom For Effectively Reduces The Entry Of Stray Light.
By Screwing This Product Into The Schmidt-Cassegrain Telescope's Rear Cell 50.8 Mm / 2 Inches And Then Attaching Your 2 Inch Eyepieces For An Additional 55 Mm / 2.16 Inches Back Travel.
New 2" 90 Deg 99% Dielectric Mirror Diagonal For Telescope With 1.25" Adapter; Full Metal; Has A 1/10Th Wave Flat Optical Glass Surface; Solid Aluminum Housing; Threaded To Accept Standard 2" Filters; The 2" Eyepiece Holder Uses A Non-Marring Brass Compression Ring To Secure Your Valuable Eyepieces, The 1.25" Adapter Also Has A Non-Marring Brass Compression Ring.
Features
- Excellent quality dielectric diagonal; mirror star diagonal - 99% reflectivity; provides a comfortable 90 degree view from your refractor; fits standard 2" (50.8 mm) diameter focus tubes; use both 2" (50.8 mm) and 1.25" (31.75 mm) eyepieces
- New 2 90 deg 99% dielectric mirror diagonal for telescope with 1.25 adapter; full metal; has a 1/10th wave flat optical glass surface; solid aluminum housing; threaded to accept standard 2 filters; the 2 eyepiece holder uses a non-marring brass compression ring to secure your valuable eyepieces, the 1.25 adapter also has a non-marring brass compression ring
- Both sizes of eyepieces may be used and are protected from dings and scratches that would result from a standard set-screw, this 2 diagonal works with any Refractor that accepts a 2 star diagonals, it can also be used with schmidt-cassegrain or maksutov-cassegrain with an optional 2 inches visual back (see below)
- By screwing this product into the schmidt-cassegrain telescope's rear cell 50.8 mm / 2 inches and then attaching your 2 inch eyepieces for an additional 55 mm / 2.16 inches back travel
- SV159 eyepiece adapter is an anodized aluminum adapter SCT to 2-inch eyepiece adapter for all schmidt-cassegrains telescopes; with thread on the bottom for effectively reduces the entry of stray light
- See more on Amazon...
Brand: SVBONY
See On Amazon #2
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
See On Amazon #3
SVBONY SV222 90 Degree Diagonal Mirror, 1.25 Inch Telescope Diagonal with Anti Reflection Coating Metal, Telescope Accessory for Refractor Telescope
Asin: B0CFLM3XBM | Model: FCAW9179B | PartNumber: FCAW9179B
1.25 Inches Thread; 1.25 Inches Sv222 Telescope Diagonal Can Connect Filter; Meet Various Needs Of Customers.
99% High Reflectivity; Telescope Accessory Have Large Amount Of Light Transmission; Good Imaging Effect.
Locking Mechanism; Sv222 90 Degree Diagonal Mirror Ensure The Stable Installation And Use Of The Eyepiece; Not Easy To Fall Off.
Extinction Thread; Extinction Thread Prevents Stray Light From Entering; Ensures Observation Quality.
Features
- 90-degree design; SV222 90 degree diagonal mirror provides a better observation experience when visually observing
- Extinction thread; Extinction thread prevents stray light from entering; ensures observation quality
- 1.25 inches thread; 1.25 inches SV222 telescope diagonal can connect filter; meet various needs of customers
- Locking mechanism; SV222 90 degree diagonal mirror ensure the stable installation and use of the eyepiece; not easy to fall off
- 99% high reflectivity; telescope accessory have large amount of light transmission; good imaging effect
- See more on Amazon...
Brand: SVBONY | Manufacturer: SVBONY
Dimensions: 3.10 x 5.50 x 4.30 inches | Weight: 0.50 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
See On Amazon #4
SVBONY SV222 45 Degree Diagonal Mirror, 1.25 Inch Telescope Diagonal with FMC and Phase Coating, Correct Image Diagonal for Refractor Telescope
Asin: B0CFKRC6N2 | Model: FCAW9179A | PartNumber: FCAW9179A
Delustering Design; Blackened And Baffled Inside; It Can Prevent Internal Stray Light Reflection.
The Installation Is Stable; Brass Pressure Ring Design; Sv222 45 Degree Diagonal Is Firmly Connected With The Eyepiece And Does Not Shake; It Will Not Scratch The Eyepiece.
Metal Material; 1.25 Inch Sv222 Telescope Diagonal Is Made Of Aluminum Alloy Metal Material; With Black Anodizing; Sturdy And Durable.
The Image Is Clear And Bright; Correct Image Diagonal Adopts A 45-Degree Upright Prism; With Full Multi-Layer Coating And Phase Coating; The Image Contrast Is High; The Picture Is Clear And Bright.
Features
- 1.25-inch aperture; SV222 45 degree diagonal is 1.25-inch aperture; strong versatility; can be applied to 1.25-inch eyepieces and astronomical accessories
- The image is clear and bright; correct image diagonal adopts a 45-degree upright prism; with full multi-layer coating and phase coating; the image contrast is high; the picture is clear and bright
- Delustering design; blackened and baffled inside; it can prevent internal stray light reflection
- Metal material; 1.25 inch SV222 telescope diagonal is made of aluminum alloy metal material; with black anodizing; sturdy and durable
- The installation is stable; brass pressure ring design; SV222 45 degree diagonal is firmly connected with the eyepiece and does not shake; it will not scratch the eyepiece
- See more on Amazon...
Brand: SVBONY | Manufacturer: SVBONY
Dimensions: 3.10 x 5.50 x 3.90 inches | Weight: 0.52 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
See On Amazon #5
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
See On Amazon #6
SVBONY SV223 1.25 Inch 90 Degree Dielectric Mirror, 99% Reflective Dielectric Coating Star Diagonal, Clicklock Locking Mechanism, Diagonal Adapter with Brass Compression Ring
Asin: B0CFLM6RNZ | Model: FCAW9180A | PartNumber: FCAW9180A
Image Is Clear And Bright; The Sv223 Dielectric Mirror Is Equipped With A Thick Precision Optical Flat Mirror With An Enhanced 99% Reflective Dielectric Coating; Which Has A Large Amount Of Light Transmission And A Good Imaging Effect.
90 Degrees Design; The Star Diagonal Of Sv223 Adopts A 90 Degrees Design; Which Can Provide You With A Better Observation Experience During Visual Observation.
High-Quality Aluminum Material; Internal Antireflection Baffling For Highest Contrast; Which Is Light And Stable; Ensuring That The Star Diagonal Is Durable And Can Reduce The Weight Of The Equipment Without Affecting The Balance Of The Equipment.
Stable Installation; The Sv223 Dielectric Mirror Has A Clicklock Locking Mechanism; Which Can Realize Ultra-Fast Clamping Action And Ensure The Stable Installation And Use Of The Eyepiece; Sv223 Star Diagonal Not Easy To Fall Off.
Features
- 1.25" diameter; SV223 diagonal adapter can be combined with 1.25" eyepieces and barlow lens; suitable for any 1.25" telescope accessories
- Stable installation; the SV223 dielectric mirror has a clicklock locking mechanism; which can realize ultra-fast clamping action and ensure the stable installation and use of the eyepiece; SV223 star diagonal not easy to fall off
- Image is clear and bright; the SV223 dielectric mirror is equipped with a thick precision optical flat mirror with an enhanced 99% reflective dielectric coating; which has a large amount of light transmission and a good imaging effect
- High-quality aluminum material; internal antireflection baffling for highest contrast; which is light and stable; ensuring that the star diagonal is durable and can reduce the weight of the equipment without affecting the balance of the equipment
- 90 degrees design; the star diagonal of SV223 adopts a 90 degrees design; which can provide you with a better observation experience during visual observation
- See more on Amazon...
Brand: SVBONY | Manufacturer: SVBONY
Dimensions: 2.83 x 4.72 x 3.46 inches | Weight: 0.77 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
See On Amazon #7
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
See On Amazon #8
Astromania 2" 90-Degree 99% Enhanced Dielectric Diagonal Mirror - Provide a Much Brighter Image Than with an Ordinary Star Diagonal
Asin: B01M3P1S4B | Model: SKU_AM_DM29099 | PartNumber: SKU_AM_DM29099 | Ean: 6970019295763
Comes With Dielectric Coatings For The Most Light Transmission Possible..
2" - 1.25" Reducing Sleeve With Brass Compression Ring, Non-Marring Compression Safety Secures The Eyepieces..
Suitable For Refractors, Schmidt-Cassegrains, Acf, Edgehd And Maksutov-Cassegrains..
Multi-Layered Dielectric Coatings That Produce 99-Percent Reflectivity For Brighter, Sharper Images..
Features
- 2" Diagonal Mirror with 99% reflection, optics are made with Pyrex glass.
- Multi-layered dielectric coatings that produce 99-percent reflectivity for brighter, sharper images.
- Comes with dielectric coatings for the most light transmission possible.
- Suitable for refractors, Schmidt-Cassegrains, ACF, EdgeHD and Maksutov-Cassegrains.
- 2 - 1.25 reducing sleeve with brass compression ring, non-marring compression safety secures the eyepieces.
- See more on Amazon...
Brand: Astromania | Manufacturer: Astromania
Dimensions: 1.18 x 2.20 x 2.20 inches | Weight: 1.52 pounds
See On Amazon #9
Explore Scientific 99% Reflective 2" Diagonal
Asin: B00BR21KM2 | Model: DD02-00CF | PartNumber: DD02-00CF | Ean: 0962392010145 | UPC: 962392010145
Brand: Explore Scientific | Manufacturer: Explore Scientific
Dimensions: 6.70 x 7.60 x 6.70 inches | Weight: 2.30 pounds
Warranty: Limited Warranty is one year, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when product is registered within 60 days of purchase.
See On Amazon #10
SV188P Dielectric Mirror Star Diagonal and SV135 Telescope Eyepiece Zoom 7 to 21mm for Astronomic Telescopes
Asin: B0C499L1XZ
Sv188p Star Diagonal 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.
Sv135 Zoom Eyepiece Fully Multi-Coated Premium Eyepiece;The True Fully Multi-Coated Premium Eyepiece With Superior Edge And Center Sharpness Than Normal Plossl Eyepieces; 6-Element 4-Group Premium Optical Design For Superior Optical Performance.
Sv135 7-21Mm Zoom Eyepiece Equivalent To Multiple Eyepieces ;Obtain Higher Magnification With Short Focal Length;It Could Bring You A Better Observation Experience In A Comfortable Situation With High-Contrast Imaging.
Sv188p Star Diagonal 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.
Features
- SV188P star diagonal dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing
- SV188P star diagonal 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
- SV188P star diagonal 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
- SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces ;obtain higher magnification with short focal length;It could bring you a better observation experience in a comfortable situation with high-contrast imaging
- SV135 zoom eyepiece fully multi-coated Premium eyepiece;The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces; 6-Element 4-Group premium optical design for superior optical performance
- See more on Amazon...
Brand: SVBONY
See On Amazon #11
Meking Optical Prism Photography Set, Triangular Prism Crystal Glass Cube Prism for Teaching Light Spectrum Physics Lens Photography Studio Shooting 1
Asin: B08F9XT3VS | Model: coating prism set | PartNumber: coating prism set | Ean: 8711419941274
Professional Camera Prism Photography: Its Great Idea To Add Some Creative Effect In Photo, Film Or Video. Such As Rainbow Colors, Dreamy Looks, Beautiful Reflections Or Light Flare Which You Don't Even Need To Use Photoshop.
Package Included: 1 X Round Crystal Ball; 1 X Triangular Prism; 1 X Cube Prism; 1X Microfiber Cloth; The Microfiber Cloth Can Remove Any Fingerprints And Keep The Lensball Clear.
Gifts For Photographers: A Surprise Prism Gift As Photography Accessory To Create Cool Refraction In Photos. In Addition, It Can Also Be A Gift For Kids To Create Light Rainbow Effect For Teaching Light Spectrum.
Handfree Shooting: With A 1/4" Threaded Hole, So It Can Be Mounted On A Stand Or Tripod, Precisely Positioning The Prism Or Place In Front Of The Lens To Release Your Hands When Photoshooting.
Features
- Optical Prism Photography Set, 130mm Triangular Prism 60mm Crystal Glass 50mm Cube Prism for Teaching Light Spectrum Physics and Lens Photographic Studio Shooting
- Handfree Shooting: With a 1/4 threaded hole, so it can be mounted on a stand or tripod, precisely positioning the prism or place in front of the lens to release your hands when photoshooting
- Professional Camera Prism Photography: Its great idea to add some creative effect in photo, film or video. Such as rainbow colors, dreamy looks, beautiful reflections or light flare which you don't even need to use Photoshop
- Gifts for Photographers: A surprise prism gift as photography accessory to create cool refraction in photos. In addition, it can also be a gift for kids to create light rainbow effect for teaching light spectrum
- Package Included: 1 x Round Crystal Ball; 1 x Triangular Prism; 1 x Cube Prism; 1x microfiber cloth; The microfiber cloth can remove any fingerprints and keep the lensball clear
- See more on Amazon...
Brand: Meking | Manufacturer: Meking
Dimensions: 0.04 x 5.10 x 1.18 inches
See On Amazon #12
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
See On Amazon #13
William Optics 1.25" 45-deg Erecting Prism Diagonal
Asin: B005DFVPUG | Ean: 0962392011821 | UPC: 962392011821
Brand: William Optics | Manufacturer: ARBrend
See On Amazon #14
SKYOPTIKST 1.25" Zenith Diagonal Dielectric Mirror for Refractor Astronomical Telescope 99% Reflection Accessories 90 Degree
Asin: B09X4F9QHT | Model: 1.25TDJ90D99HD-US | PartNumber: 1.25TDJ90D99HD-US | Ean: 0741754670438 | UPC: 741754670438
Diagonal Provides A Comfortable 90-Degree Viewing Orientation When Observing The Night Sky Through A Refractor Telescope.
Machined And Anodized Aluminum Housing Features Machine-Threaded Baffles For Optimized Contrast.
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.
1.25 Inches Nosepiece Fits 1.25 Inches Telescopes; Accepts Standard 1.25 Inch Filters; Eyepieces; Barlow Lenses And Other Accessories.
Features
- Multi-layered dielectric coatings that produce 99-percent reflectivity for brighter, sharper images.
- 1.25 inches nosepiece fits 1.25 inches telescopes; accepts standard 1.25 Inch filters; eyepieces; Barlow lenses and other accessories
- Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor 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
- Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast
- See more on Amazon...
Brand: SKYOPTIKST | Manufacturer: SKYOPTIKST
See On Amazon #15
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
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
See On Amazon #16
SVBONY Diagonal Mirror Bundle with Extension Tube
Asin: B0D2L9S9FK
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.
Standard 2-Inch Device; Fits In 2" Telescope Focusers; And Accepts 2" Eyepieces Or Accessories.
Extension Tube Optical Length 45Mm; Provides Extra Focuser Back Travel For For Astrophotographic Applications.
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
- Extension tube optical length 45mm; provides extra focuser back travel for for astrophotographic applications
- Standard 2-inch device; fits in 2 telescope focusers; and accepts 2 eyepieces or accessories
- See more on Amazon...
Brand: SVBONY
See On Amazon #17
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
See On Amazon #18
Astromania 2" SCT 90-Degree Mirror Diagonal with 93% reflectivity Across Visible Spectrum - fits Rear Cells of Schmidt-Cassegrain telescopes and Includes an Adapter to use with Refractor telescopes
Asin: B01MA44UIQ | Model: SKU_AM_DM29093 | PartNumber: SKU_AM_DM29093 | Ean: 6970019295770
Allows You To Take Advantage Of The Wider Field Of View Provided By Two Inch Eyepieces. Dielectric Coatings Are More Durable Than Regular Or Enhanced Aluminum Coatings, So You Will Enjoy Years Of Excellent Performance From This Product..
Associated With 90°Mirror Diagonals, Which Let You View Objects That Are At A 90°Angle From The Direction The Telescope Is Pointing.Improved Attachment Design Features A Brass Clamping Ring Which Does Not Mar, And Provides A More Secure Connection..
The Sct Adapter Has A Standard Sct Female Thread (2", 24 Tpi),You Can Use Your Refractor Diagonal With All Telescopes Having A Standard Sct Thread For Which You Can Attach This Diagonal Directly To Schmidt-Cassegrain Telescopes And Many Maksutov-Cassegrain Telescopes..
The 2" Sct Diagonal Features Dielectric Coatings With 93% Reflectivity Across The Visible Spectrum And A 1/10 Wave Mirror For Bright And True Images..
Features
- It fits all rear cells of Schmidt-Cassegrain telescopes and includes an adapter to use with refractor telescopes.
- The 2 SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images.
- Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product.
- The SCT Adapter has a standard SCT female thread (2, 24 TPI),you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes.
- Associated with 90 mirror diagonals, which let you view objects that are at a 90 angle from the direction the telescope is pointing.Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.
- See more on Amazon...
Brand: Astromania | Manufacturer: Astromania
Dimensions: 2.65 x 5.51 x 3.74 Inches | Weight: 1.04 pounds
See On Amazon #19
Orion 20-Inch Twist-Tight Dielectric Mirror Star Diagonal, Black, Medium 40902
Asin: B01LWVB3YQ | Model: 40902 | PartNumber: 40902 | Ean: 0759270409029 | UPC: 759270409029
Dielectric Mirror Coatings Provide Higher Reflectivity For Maximum Brightness And Contrast With More Durability Than Enhanced Aluminum Coatings.
Nosepiece Barrel Is Threaded To Accept 2" Orion Filters, And A Step-Down 2"-1.25" Adapter Is Included.
Machined And Anodized Aluminum Housing Features Machine-Threaded Glare Baffles For Peak Performance.
Twist-Tight Clamping Mechanism Grips Inserted Eyepieces More Securely Than Typical Thumbscrew-Equipped Diagonals - Without Scratches!.
Features
- This 2", 90-degree mirror diagonal features sophisticated dielectric coatings with highly efficient 99% reflectivity
- Twist-tight clamping mechanism grips inserted eyepieces more securely than typical thumbscrew-equipped diagonals - without scratches!
- Dielectric mirror coatings provide higher reflectivity for maximum brightness and contrast with more durability than enhanced aluminum coatings
- Machined and anodized aluminum housing features machine-threaded glare baffles for peak performance
- Nosepiece barrel is threaded to accept 2 Orion filters, and a step-down 2-1.25 adapter is included
- See more on Amazon...
First Available: 12/12/2018
Brand: Orion | Manufacturer: Orion
Dimensions: 4.00 x 6.00 x 3.25 inches | Weight: 1.25 pounds
Warranty: Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.
See On Amazon #20
1.25inch 45-Degree 31.7mm Erect Image Diagonal Mirror Astronomical Telescope Eyepiece Accessory Twist-Tight Dielectric Mirror Star Diagonal
Asin: B07XJS8QRH | Ean: 0739665042215 | UPC: 739665042215
Wide 45 Degree Angle Makes You View Correct Image From Refractor Telescope Stand And Just Look Down With A Comfortable Angle..
Any Question,Please Feel Free To Contact Us ,We Will Reply To You Soon..
Comes With Dust Cover To Keep Your Lens Clear, Easy To Install And Use..
Fits For 1.25Inch Telescope Eyepiece And Focuser. Work With Refractor And Catadioptric Telescopes. Plastic Body With Optical Glass Lens, Providing Clear And Sharp Image..
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. Plastic body with optical glass lens, providing clear and sharp image.
- 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.
- Any question,please feel free to contact us ,we will reply to you soon.
- See more on Amazon...
Brand: Oumij | Manufacturer: Oumij
Dimensions: 1.57 x 3.15 x 1.57 inches
See On Amazon
Looking For Something Else?
Search