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.
|
|
|
---|---|---|
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. |
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.
![]() |
![]() |
![]() |
![]() |
![]() |
|
---|---|---|---|---|---|
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% | |
Customer Reviews |
4.3 out of 5 stars
40
|
4.8 out of 5 stars
14
|
4.7 out of 5 stars
89
|
4.8 out of 5 stars
15
|
4.8 out of 5 stars
6
|
Price | $21.99$21.99 | $27.99$27.99 | $32.99$32.99 | $65.99$65.99 | $167.99$167.99 |
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 |