What are the best celestron diagonal mirror currently available to purchase? This article attempts to give you some answers to guide you in the process of purchasing the best celestron diagonal mirror to suit your needs. In our buying guide, we outline certain features to consider when buying celestron diagonal mirror. It is important to take time and research before you commit to purchasing.
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1. Celestron Erect Image Prism for Refractor and Schmidt Cassegrain
Feature
A great accessory for daytime terrestrial viewing with your telescopeThis 1.25 diagonal produces right side up and left-to-right correct images when used with refractors and catadioptric (Schmidt-Cassegrain) telescopes
Inserts into 1.25 focusers or visual backs; accepts standard 1.25 eyepieces
Package Weight: 136.08 grams
2. Orion 8727 2-Inch Dielectric Mirror Star Diagonal
Feature
90 degrees 2" mirror diagonal features sophisticated, lab-tested dielectric coatings that provide an astounding 99% reflectivityDielectric mirror coatings are more durable than enhanced aluminum coatings and provide higher reflectivity for maximum view brightness
Machined and anodized aluminum housing features machine-threaded glare baffles for high contrast
Nosepiece barrel is threaded to accept 2" Orion filters, a 2"-1.25" step-down adapter is included
The diagonal is a great way to make nighttime viewing orientations through a refractor telescope more comfortable
3. Celestron 93573 Dielectric Star Diagonal 2" with Twist Lock
Feature
Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatingsProvides a 90 viewing angle, perfect for more comfortable viewing through refractor and cass grain-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
Includes a Stepdown adapter, so the diagonal accepts eyepieces, Barlow lenses, threaded filters, and other accessories in both 2 and 1. 25 sizes
4. Celestron 2-Inch XLT Diagonal Mirror (for SCT Telescope)
Feature
2 SCT mirror diagonal with high performance XLT coatings1/10th wave mirror is tested with an interferometer to ensure quality
Housing is precision machined to achieve and hold good optical alignment.
Includes a 2 to 1.25 adapter and aluminum carry case
5. Orion 8880 1.25-Inch Dielectric Mirror Star Diagonal
Feature
90 diagonal features sophisticated, lab-tested dielectric coatings that boast an astounding 99 percent reflectivityDielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings
Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope
Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast
1.25" nosepiece barrel is threaded to accept like-sized Orion eyepiece filters
6. Baader Planetarium 2-Inch Clicklock Mirror Diagonal Eyepiece
Feature
Oversized 2" dielectric 1/10 wave mirrorScratch resistant hard coated mirror surface for safe cleaning, to remain scratch free even if subjected to harsh environment
Mirror rejects deep UV and IR radiation safe for solar viewing with all White-Light and H-Alpha Solar Filters
Largest possible clear aperture for widefield application
Clamps heavy accessories effortless, with fingertip action
7. William Optics 2" 99% Dielectric Dura Bright Carbon Fiber Mirror Diagonal for SCTs
Feature
Carbon FiberDialectric Diagonal
8. Orion 1.25 Inch Twist-Tight Dielectric Mirror Star Diagonal
Feature
1.25", 90-degree mirror diagonal features sophisticated dielectric coatings with highly efficient 99% reflectivity for peak performanceTwist-tight clamping mechanism grips inserted eyepieces more securely than typical thumbscrew-equipped diagonals - without scratching!
Durable dielectric mirror coatings provide higher reflectivity for maximum brightness and contrast
Machined and anodized aluminum housing features machine-threaded glare baffles to eliminate glare for great performance
Nosepiece barrel threaded to accept 1.25" Orion filters
9. Solomark 2inch Explorer Enhanced Dielectric Diagonal Mirror - Enhanced 99% REFLECTIVITY for Maximum View Brightness and Sharpness
10. SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter
Feature
Excellent Quality Dielectric Diagonal; Mirror Star Diagonal - 99% ReflectivityProvides 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) EyepiecesNew 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 inch visual back (See below)
Dielectric diagonal is especially important;A standard aluminized diagonal has about 92% reflectance;And this decreases with time as the aluminum mirror surface ages
For the vast majority of the visible spectrum;the reflectance does not vary more than about 0.1% below 100%;And the dielectric surface does not age like aluminum;This combination leads to the equivalent of a little more light grasp compared to standard diagonals
