The Celestron 1.25inch 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 helps avoid neck strain when looking through the eyepiece.

Please note that a 90º diagonal will display images that are right side up, but left to right orientation will be reversed (mirrored).

2 Years Warranty

SKU: 94115-A

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 coating is painstakingly applied to Pyrex with a surface accuracy of a 1/10 wave flatness.

To ensure performance, every mirror is optically inspected under conditions far more critical than a diagonal mirror is ever used in typical telescopes. In this way, Tele Vue can guaranty that the Everbrite will permit your telescope to operate at its fullest potential.

The Everbrite is offered in both 1¼" and 2" models. The diagonal bodies of each are machined from solid blocks of aluminum. Permanent alignment is assured. The one piece body construction also means heavy accessories can't force the diagonal body to "unscrew" from the barrel as with other brands. Both the 1¼" and 2" models feature brass clamp rings, anti-reflection threads and 1¼" and 48mm filter threads respectively.

Includes ASF-8125 Tele Vue 2" - 1.25" Adapter Satin Hi Hat

Bintel Twist lock Mirror Star Diagonal 1.25"

Ideal for all telescopes with 2" focusers

• 90° viewing angle
• Comfortable viewing position
• 2″ to 1.25″ eyepiece adaptor
• 5 Years warranty for Star Diagonals

Affordable replacement diagonal for all telescopes with 1.25" focusers

• 90° viewing angle
• Comfortable viewing position
• For high-end telescope systems
• 5 Years warranty for Star Diagonals

High quality 2" telescope diagonal with 1.25" adaptor

The  SkyWatcher 2″ 90° Dielectric Star Diagonal is a high performance diagonal for high-end telescopes. The high reflectivity of the mirror (99%) offer a bright image without loosing luminosity. The high optical correction of the mirror (1/10 lambda) does not compromise the resolution or the contrast of the image.

The CNC body of the diagonal is both solid and elegant, the telescope side  connection in threaded for 2″ filters while the eyepiece side has a brass compression ring for not damaging the barrels of the eyepieces. The diagonal includes a 2″ to 1.25″ adapter also equipped with brass compression ring.

Please note this accessory can be used only on already telescopes equipped with a 2″ focuser.