Feature
●1.25" 90-degree mirror star diagonal for any telescope with 1.25" connector (not suitable for Newtonians).
●More comfortable viewing orientation as you observe from above, filter thread for any 1.25" filter. Accepts standard 1.25" eyepieces.
●Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser.
●Useful for refractor and Cassegrain telescopes - not recommended for reflectors.
●Wide 90 degree angle: You can view correct image from refractor telescope stand and just look down with a comfortable angle.
Description
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| Astromania 1.25" 90-Degree Diagonal Mirror | Astromania 1.25 45-Degree Diagonal Prism | 1.25" 90-Degree Erecting Prism | 2" 90-Degree Mirror Diagonal 93% | 2" 90-Degree Diagonal 99% | |
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| Price | $20.97 | $24.97 | $27.97 | $65.99 | $147.97 |
| Connection (to the telescope) | 1.25" | 1.25" | 1.25" | 2" | 2" |
| Viewing posture | 90° | 45° | 90° | 90° | 90° |
| Coating of optical system | Fully | Fully | Fully | Dielectric | Dielectric |
| Correction of vertically reversed image | - | ✓ | ✓ | - | ✓ |
| Correction of horizontally reversed image | - | ✓ | ✓ | - | - |
| Ring clamp | - | - | - | ✓ | ✓ |
| Filter thread | ✓ | ✓ | ✓ | ✓ | ✓ |
| Type of build | Diagonal mirror | Amici prism | Amici prism | Diagonal mirror | Diagonal mirror |
| Type | Deviating optics | Deviating optics | Deviating optics | Deviating optics | Deviating optics |
| Other contents | - | - | - | - | Extension tube/2" to 1.25" Eyepiece Adapter |
This Astromania star diagonal has a 1.25" metal barrel. The chrome finish not only looks good, but is also practical, as the star diagonal always remains firmly attached to the focuser. The clamping screws lock the barrel firmly in place without scoring the nosepiece, as is the case with many cheaper products. In short - this barrel will keep your star diagonal in condition for virtually forever.The mirror has had everything that is possible optimised, it is the link between your eye and the telescope - and is hence just as important.Sometimes you do not want to have to re-install a filter every time you use a new eyepiece. Perhaps you might want to observe the Moon today with a range of eyepieces - but with the same filter? That is also possible due to the filter thread provided in the star diagonal.
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Durable And SturdyThe two mirror tubes are made of metal to make the structure stronger and more durable. Protective coating on the mirror to ensure a long life. |
Two Eyepiece Holder ThumbscrewThere are two screws on each side of the eyepiece barrel to make the structure more stable and durable. The two screws are clamping screws, which is more convenient to use. |
90 Degree Diagonal MirrorWhen using a telescope, viewing from a comfortable Angle will make the experience better. For more comfortable overhead viewing through refractor and Cassegrain type telescopes. |
Long-time Use
- Protective coating on the mirror to ensure a long life. The high quality of the mirror makes the image seen clearer and brighter. This wide 90 degree angle makes you view correct image from telescope stands.
- Type of Build: Diagonal Mirror
The advantages in a nutshell:
Easy to use
Simply insert the diagonal mirror into the 1.25 " telescope; Fit for 1.25” telescope eyepiece and telescope focuser , 1.25" Star Diagonal Mirror accepts 1.25" eyepieces filters and other accessories with a 1.25” insert barrel.
- Provides a comfortable 90 degree view from your refractor
- The material: metal and plastic
- Standard 1.25 " diameter fits for 1.25" eyepiece and telescope
- Excellent quality fully diagonal
- High glossy finish appearance
- High optical lens transparency
