Telescope Diagonals

2" Mirror Diagonal with Twist-lock retainer and multilayer dielectric coating with 99% reflectivity in green (546nM) light. Reduces or eliminates vignetting, and allows for use of any 2" accessory. Please note: does not include adapter...

Ensure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 2” with Twist-Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without purchasing an...

Ensure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 1.25” with Twist-Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without replacing your...

The Celestron 1.25” Star Diagonal slides into the focuser (1.25”) of your refractor or catadioptric telescope and accepts standard 1.25” eyepieces, allowing you to view objects more comfortably. A diagonal that is angled at 90º...

2" Dielectric mirror diagonal with twistlock, for SCT threads, 99% reflectivity at 546nM 2" Mirror Diagonal for Schmidt-Cassegrain thread-on with Twist-lock retainer and multilayer dielectric coating with 99% reflectivity in green (546nM) light. Reduces or...

Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," most natural image available....

The M54 backfocus adjuster's front telescope interface is female thread M54x0.75 and the rear camera interface is male thread M54x0.75, the overall thickness is 18mm and offers ± 2mm adjustment range. The M48 backfocus adjuster's...

VS60F is a 1.25" right angle correct imaging package with EID90 prism and W25-X eyepiece for using VS60 as a finderscope. Magnification is 9X and true field is 6.5 degrees. It works with the Antares...

Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a refractor or a catadioptric telescope (the Schmidt-Cassegrain is the most popular example), and you would...

Containing: T-2/32 Diagonal with focusing 1¼" eyepiece clamp (#2458125) and 1¼" nose piece (#2458105) Connection objective side: T-2 internal thread 1¼ "barrel Connection eyepiece: T-2 external thread and focusable 1¼ "eyepiece Excellent for Baader Maxbright...

The high-quality CNC machined diagonal, with its matte interior coating and gloss oxidized surface, brings a more premium texture and a more comfortable feel. The all-black colour gives you the impression of stability. The integrated,...

Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," most natural image available....

 A 45 degree 2" precision polished correct image amici prism that allows for terrestrial viewing with 2" eyepieces. MgF2 coated, It is also suitable for astronomy.

Specifications Model: DIA1.25-M DIA2-M Barrel Size: 1.25" 2" Eyepiece Holder: Twist-up Tension Type - 1.25" Twist-up Tension Type - 2" Viewing Angle: 90° 90° Features: Dielectric coating, >99.99% reflectivity, aluminum anodizing

Use the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube assembly (OTA) is aimed at or near the zenith. Built with a...

Use the iOptron 90° Dielectric Star Diagonal to place your head in a comfortable viewing position when your refractor or catadioptric optical tube assembly (OTA) is aimed at or near the zenith. Built with a...

Meade Series 5000 2" Enhanced Diagonal Mirror -- Our best diagonal for Meade LX90 and LX200 models. Features an incredible 99% reflective surface across the visual spectrum. For spectacular views of the universe, use the...

Specifications SKU (#) 2456115 EAN CODE 4047825033543 NET WEIGHT (G) 450 OPTICAL DESIGN Mirror Diagonal INNER CONNECTION (LENS SIDED) Thread, M48, M55, 2" (50,8mm) OUTER CONNECTION (LENS SIDED) Barrel, Dovetail ring, S58, 2" (50,8mm) INNER...

Premium dielectric coatings in a carbon fibre body and twist lock adapter to prevent marring of eyepieces.