Astromania 2 Inch Star Diagonal 90 Degree Mirror with 93% Reflectivity Dielectric Coatings Fully Metal for Refracting Telescope Eyepiece Lens Astronomical Visual Astrophotography

This 2 inch diagonal telescope is designed for observers who want to take advantage of the wider field of view provided by 2 inch telescope eyepieces; This 2" star diagonal is your upgrade path to expansive lunar planetary and deep-sky vistas Built with diffraction-limited optics and premium dielectric coatings this telescope diagonal delivers pinpoint star images and crisp detail; 1/10 wave mirror ensures accurate figure for making it a reliable choice for high-power planetary observation The 2" diagonal features dielectric coatings with 93% reflectivity across the visible spectrum; This translates to a bright true-to-color image when observing the Moon Jupiter or faint deep-sky objects – Significant performance boost for visual astronomy Unlike regular or enhanced aluminum coatings dielectric coatings are more durable and resistant to oxidation and cleaning damage; 90 degree 2 inch star diagonal maintains its high reflectivity for making it cost-effective investment for serious observers The 2 inch diameter fits all rear cells of refractor telescopes equipped with 2 inch focuser; It can also be used with Schmidt-Cassegrain telescopes using an SCT adapter (not included) – available separately in our store for flexible setup This diagonal mirror lets you view objects at a 90 degree angle from the direction the telescope is pointing; You can observe comfortably from seated or standing position especially when the telescope is aimed near the zenith Constructed from high-quality aluminum alloy this 2inch star diagonal significantly enhances longevity while keeping overall weight manageable; Robust housing protects the mirror and threads for ensuring reliable performance in both backyard and field use The improved attachment design features a brass clamping ring that does not mar eyepiece barrels and provides a more secure connection; This telescope diagonal holds them firmly without damaging your valuable optics