SkyWatcher Deluxe 1.25 Inch Di-Electric 90 Degree Star Diagonal

SkyWatcher Deluxe 1.25" Dielectric 90° Star Diagonal

Enhance your telescope's performance and comfort with the SkyWatcher Deluxe 1.25" Dielectric 90° Star Diagonal. Designed for both astronomical and terrestrial observations, this premium star diagonal offers outstanding reflectivity, improved contrast, and an ergonomic viewing angle—ideal for extended sessions at the eyepiece.

Key Features

Exceptional Reflectivity
Utilises dielectric coatings to reflect up to 99% of incoming light, preserving image brightness and enhancing contrast for deep-sky and planetary viewing.

Comfortable 90° Viewing Angle
Redirects the optical path by 90°, offering a more comfortable viewing position, especially when your telescope is pointed near the zenith.

High-Quality Construction
Crafted with lightweight yet durable materials, this diagonal is made to last. It’s ideal for use with 1.25" focusers and eyepieces, ensuring compatibility with a wide range of telescopes.

Dielectric Coatings for Performance
The high-reflectivity multi-coatings on optical surfaces ensure maximum image brightness, sharpness, and reduced light loss—critical for high-contrast lunar and planetary detail.

Versatile for All Viewing Applications
Perfect for both astronomical observing and terrestrial viewing, thanks to its high-precision optical build.

Specifications

• Barrel Size: 1.25" (31.7 mm)

• Reflectivity: Up to 99%

• Viewing Angle: 90 degrees

• Coatings: Dielectric high-reflectivity multi-coatings

• Applications: Astronomical and terrestrial

• Material: Lightweight and durable construction

Summary

The SkyWatcher Deluxe 1.25" Dielectric 90° Star Diagonal is an essential upgrade for any visual astronomer seeking brighter, crisper views and more ergonomic observing. Whether you're scanning the night sky or observing landscapes in daylight, this diagonal delivers performance, precision, and comfort in equal measure.