TS SCT Star Diagonal Mirror with 91% Reflectivity

This is a very affordable star diagonal with an exceptional mechanical and optical quality within its price range. Even compared with many much more expensive star diagonals we couldn't see a difference in image quality.

2" Star Diagonals offer a larger possible field of view compared with 1.25" diagonals. This is particularly important for deep sky observing through Schmidt-Cassegrains and Maksutovs with their rather long focal length.

The diagonal screws directly onto the SCT thread at the rear of the telescope. Most Schmidt-Cassegrains and many Maksutovs have this thread. The diagonal accepts both 1.25" and 2" accessories.

Compatible Telescopes

• Celestron / Meade SCTs
• Intes / Intes Micro Maksutov Cassegrains
• and similar

Quality Features

• all metal design
• SC thread adpatation
• 2" accessories are held in place with a brass compression ring
• 1.25" adapter also with compression ring
• very good optical quality

Brass Compression Rings ( 2" and 1.25" )

1.25" and 2" accessories are securely held in place using a compression ring.
The advantages of compression rings compared with regular locking screws are:

• the compression ring avoids signs of use. Accessories are not scratched.
• safer grip and a reduced tendency that accessories are tilted out of the optical axis.

Delivery contents

• 2" SCT diagonal mirror. 2" clamp with compression ring
• 2"-on-1.25" adaptor with M48 filter thread and 1.25" compression ring
• dustcaps on the eyepiece side
• strong giftbox