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TS SC 2-Inch Star Diagonal 99% QUARTZ - 1.25-Inch Compatible

TS SC 2-Inch Star Diagonal 99% QUARTZ - 1.25-Inch Compatible
TS SC 2-Inch Star Diagonal 99% QUARTZ - 1.25-Inch Compatible
£148.00
Ex Tax: £123.33
  • Stock: In Stock
  • Model: TS-TSZSSCQ
  • Shipping Weight: 0.60kg
  • SKU: TS-TSZSSCQ
  • MPN: TS-TSZSSCQ

TS SC 2" QUARTZ Dielectric Star Diagonal Mirror - 99% Reflectivity - with SCT Thread - with 2" to 1.25" Adapter

 

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's 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 Maksutov-Cassegrains 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 (some Maksutovs would need an adapter for this diagonal mirror; see OR52067).

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
-- 99% reflectivity
-- QUARTZ mirror substrate

-- SC thread adaptation
-- 2" accessories are held in place with a brass compression ring
-- 1.25" adapter also with compression ring
-- dielectric coating
-- very good optical quality (1/12 lambda surface)


 

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.


Specifications

-- 2" SCT star diagonal - CNC machined metal body

-- telescope adaptation: SC thread (UNC 2"-24)
-- 2" clamp with compression ring. 1.25" adapter also with compression ring
-- dielectric coating
-- 99% reflectivity, 1/12 lambda surface quality
-- Quartz mirror substrate

 

Quartz Mirror

Quartz is a particularly excellent mirror substrate for high precision diagonal mirrors.

Quartz mirrors have better thermic properties and almost no thermic expansion..


What's included:
-- 2" SCT diagonal mirror.  2" clamp with compression ring
-- 2"-to-1.25" adapter with M48 filter thread and 1.25" compression ring
-- dustcaps on the eyepiece side
-- comes in a strong giftbox

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