TS-Optics 1.25" and T2 Diagonal Mirror - 99% - 1/12 Lambda
High-quality 1.25" star diagonal for high image quality♦ full illumination of 1.25"
♦ 99% reflection for a brighter image
♦ 1/12 lambda
♦ metal housing
♦ T2 thread on eyepiece side
1.25" star diagonal - 99% reflectivity - 1/12 lambda - CNC metal housing
An excellent 1.25" star diagonal for a very good image - with ring clamp for a secure hold.
Many star diagonals have a reflectivity of approx. 90° reflection (10% light is lost) and have a plastic housing. This 1.25" star diagonal from TS Optics is a really high-quality alternative with excellent imaging and high manufacturing quality. It offers full 1.25" illumination, so long focal length 1.25" eyepieces can also be used. The telescope-side sleeve has a filter thread.
Another advantage over many other star diagonal is the low-set (9 mm compared to 3 to 3.5 mm) clamping screw. The lower position prevents eyepieces with large diameters from blocking the screw.
Illumination: | full 1.25" illumination |
Reflection: | 99 % |
optical quality: | 1/12 lambda |
Mirror substrate: | optical glass BK7 |
Housing: | completely CNC machined from metal |
Connection telescope side: | 1.25" sleeve with filter thread for 1.25" filter |
Connection on eyepiece side: | T2 thread with 1.25" adapter |
Effective optical length: | 55 mm (without 1.25" adapter) |
In the box:
♦ 1.25"/T2 star diagonal with metal housing
♦ 1.25" eyepiece adapter for use with eyepieces