TS Optics 2" Star Diagonal with 99% Reflection and fused quarz - 1/12 lambda
The 2" star diagonal is coated with the same aluminium layers as high-quality telescope mirrors. A maximum reflection of 99% is achieved, and like a telescope mirror, the coating is protected from aging by a quartz layer. The quality of the mirror is maintained even after many years.
The mirror's substrate is fused quartz, comparable to Zerodur or Sital.
If you want an absolutely high-end star diagonal, with excellent flatness and reflectivity, then the star diagonal with the quartz substrate is the right one. Fused silica mirrors offer a higher thermal stability and have no bothersome expansion effects through temperature differences.
High-quality CNC body completely made of metal
2" barrel without safety notch, no jamming possible. The mirror harmonizes perfectly with compression rings
2" and 1.25" accessories are gently and precisely clamped by compression rings
Thread for 2" filters at the 2" barrel and at the reduction adapter for 1.25" accessories
Maximal illumination: Even extreme 2" wide angle eyepieces can be used to the full
High-quality mirror with precise surface and 99% reflection. When observing, you will not notice any difference in brightness and sharpness compared to direct vision
2" star diagonal mirror with compression ring and without safety notch
Reduction from 2" to 1.25" with M48 filter thread and compression ring
- Protective caps at telescope and eyepiece side
Robust cardboard box
Top-quality star diagonal mirror with CNC body and high-precision mirror surface