Diagonals

SVBONY SV188P Dielectric Diagonal for Refractor 1.25" There are many 1.25" star diagonals on the market. Many of them have a mediocre mirror qualit...

SVBONY SV223 Diagonal 90-degree 2 inch Clicklock SVBONY SV223 2inch 90-degree diagonal comes with a thick, precision, optical flat mirror with an ...

Askar 2" Diagonal The high-quality CNC machined diagonal, with its matte interior coating and gloss oxidized surface, brings a more premium texture...

Baader 2" Mirror Diagonal with 2" ClickLock With their ground-breaking introduction several years ago of the all-dielectric 2" Maxbright star diago...

William Optics 2" Durabright Diagonal for SCT This 90° 2"mirror-type star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatin...

William Optics 2" Durabright Diagonal This 90° 2"mirror-type star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatings for 9...

Antares 1.25" 45° Erecting Prism Diagonal EID45 is a 1.25" 45 degree erecting amici prism for terrestrial viewing and is not recommended for high m...

Svbony 2'' Dielectric 90 degree Diagonal with 1.25" Adapter The Svbony Dielectric 90 degree Diagonal coating is precision machined to achieve and ...

Celestron 1.25" Star Diagonal The Celestron 1.25” Star Diagonal slides into the focuser (1.25”) of your refractor or catadioptric telescope and acc...

Celestron 1.25" 45° Erect Image Diagonal Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a re...

Antares 1.25" 90° Erecting Prism Diagonal EID90 is a 1.25" 90 degree erecting amici prism for terrestrial viewing and is not recommended for high m...

Tele Vue 1.25" 90° Everbrite Diagonal Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating. The Tele Vue 1.25″ ...

Celestron 2" Dielectric Star Diagonal with Twist-Lock Ensure maximum light transmission without loss of optical quality with the Celestron Dielectr...

Celestron 1.25” Dielectric Star Diagonal with Twist-Lock Ensure maximum light transmission without loss of optical quality with the Celestron Diele...

Baader FlipMirror II Star Diagonal Baader-FlipMirror II Star Diagonal (BFM II) with three ports: Straight-through (S52, M48 and T-2 on both sides...

Antares 2" 90° Dielectric Diagonal for SCT 2MDS-D: 2" Mirror Diagonal for Schmidt-Cassegrain thread-on with pressure band retainer and multilayer d...

Explore Scientific 99% Reflective 3" Diagonal The Explore Scientific 3-inch Dielectric-Coated Diagonal Mirror comes complete with 2 inch Adapter an...

Explore Scientific 99% Reflective 2" Diagonal  The Explore Scientific 2-inch Dielectric-Coated Diagonal Mirror comes complete with 1.25-inch Adapte...

Diagonal, 2",prism, 45 Degree, SCT 2EID45S is a 45 degree 2" precision polished correct image amici prism for Schmidt-Cassegrain thread-on that all...

Antares Diagonal, 2",prism, 45 Degree 2" 45 degree correct image prism diagonal, precision polished   In the Box 2EID45 is a 45 degree 2" precision...

Baader Instrument Multi Port IMP85 The ability to get multiple benefits from a telescope opens up whole new worlds for remote observatories as well...

Baader Prism Diagonal T-2/90° 32mm High-quality Zenith Prism T-2/90 ° with 32mm Prism Rigid metal body Connection objective side: T-2 internal t...

Baader T-2 Stardiagonal (Zeiss) Prism with BBHS ® Coating T-2/90 ° diagonal prism (BaK4 glass) with 35mm free aperture terminal objective side: ...

Baader 2" BBHS ® Prism Star Diagonal Prism with 2" ClickLock Clamp 2" BBHS prism star diagonal (BaK4 glass) with 2" ClickLock clamp and black body...

Baader Zenith Prism Diagonal T-2/90 ° with 32mm Prism Includes: T-2/32 Diagonal with focusing 1¼" eyepiece clamp (#2458125) and 1¼" nose piece (...

Baader 2" Amici-erecting-prism 90° with 2" holder and 2" sleeve 90 ° Amici-erecting-prism with 2 "eyepiece and 2" barrel Including Reduction 2 "...

Baader 2" Amici-Erecting-Prism 45° with 2" SC-Thread and 2"/1¼"-Reducer 2" SC-thread and 2"/1¼"-reducer Direct attachment to Schmidt-Cassegrains...

Baader 1¼" Amici-erecting-prism 45° with 24mm free aperture Much larger prism than other so-called "Erecting prisms" Many Erect image prisms hav...

Baader 45 ° Maxbright Amici prism 1¼ "with built-in 2x glass path corrector 45 ° an erecting prism Amici Including 2x Glaswegkorrektor ™ (Glass ...

Antares 2" Twist-Lock Dielectric Diagonal for SCT 2" Dielectric mirror diagonal with twistlock, for SCT threads, 99% reflectivity at 546nM. ...

SVBONY SV188 1.25" Right Angle Mirror Diagonal The SV188 mirror diagonal is suitable for refractors, Celestron EQ, Meade Infinity, and similar tel...

SVBONY Diagonal 45 Degree 1.25-inch Fully Multi-Coated High-quality 45-degree erecting prism with Phase Coatings allows for good contrast and bri...

SVBONY 90 Degree Prism Diagonal 1.25" High-quality 90-degree erecting prism with anti-reflection coating allows for good contrast and bright imag...

SVBONY Diagonal 1.25 inch 90-degree Clicklock The diagonal comes with a thick, precision, optical flat mirror with an enhanced 99% reflective diel...

Takahashi 2" Diagonal Mirror with 1.25" adapter The Takahashi 2in diagonal is the perfrect complement to Takahashi eyepieces.  This high quality di...

William Optics 1.25" DURA BRIGHT Dielectric Diagonal Introducing New model William Optics Dura-Bright diagonal - a dramatic step forward in the evo...