Celestron 2 Inch Mirror Star Diagonal for SCT Telescopes (PRE-OWNED)

Key Features & Specifications:

This high-quality diagonal uses a precision-coated mirror to deliver superior reflectivity, enhancing contrast and brightness in deep-sky and planetary observations. Unlike traditional prisms or smaller diagonals, the 2” aperture accommodates wider field eyepieces, giving you expansive and immersive views of the night sky.

Designed with durability and optical performance in mind, this diagonal threads directly onto the rear cell of compatible SCT telescopes, ensuring a stable and light-tight connection. Whether you're an experienced observer or a passionate beginner looking to take your setup to the next level, this diagonal will significantly improve your viewing clarity and comfort.

• Optical Type: 2” star diagonal with enhanced aluminum mirror

• Compatibility: Threads directly to standard SCT rear cells (C5, C6, C8, C9.25, C11, C14)

• Reflectivity: 99% dielectric-coated mirror for maximum light transmission

• Construction: CNC-machined aluminum body for durability

• Eyepiece Holder: Accepts 2” eyepieces and includes a 1.25” adapter

• Barrel Size: 2” barrel with compression ring to securely hold eyepieces

• Mirror Surface: Flatness precision rated to λ/10

• Threaded Connection: Female SCT thread (2" x 24TPI)

• Usage: Visual astronomy (not intended for astrophotography)