TS-Optics SC 2" Star Diagonal with 99% reflectivity and compression ring
A high grade star diagonal mirror with a very precise mirror surface (approx. 1/12 lambda) for demanding users. 99% reflectivity means more light and thus a brighter image. At the same time the dielectric coating is very strong and protects the mirror surface.
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
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 with 2" clamp and compression ring
- 2"-on-1.25" adapter with M48 filter thread and 1.25" compression ring
- dustcaps on the eyepiece side
- strong giftbox
Products specifications
Connection to eyepiece | 2" and 1 1/4" |
Clamping | Compression Ring Eyepiece Clamp |
Housing material | CNC machined metal body |
Connection to telescope | SC thread |
Coating | 99 % broadband di-eletric reflection |
Filter thread | 2" / M48 |
Glastype mirror | BK7 |
Made for | SC, Intes-Maksutovs-Cassegrains |
Optical Length | 123 mm |
surface accuracy | 1/12 lambda |