Feature
●2" Diagonal Mirror with 99% reflection, optics are made with Pyrex glass.
●Multi-layered dielectric coatings that produce 99-percent reflectivity for brighter, sharper images.
●Comes with dielectric coatings for the most light transmission possible.
●Suitable for refractors, Schmidt-Cassegrains, ACF, EdgeHD and Maksutov-Cassegrains.
●2" - 1.25" reducing sleeve with brass compression ring, non-marring compression safety secures the eyepieces.
Description
Astromania 2" 90-degree 99% Enhanced Dielectric Diagonal Mirror uses multi-layered dielectric coatings in order to ensure a maximum reflection of 99% with the highest contrast and optimal sharpness. The residual stress in the plane mirror which can occur with the dielectric vapour deposition process is ruled out here. This slip fit 2-inch diagonal with 1.25-inch adapter, plus the Schmidt Cassegrain thread to 2-inch accessory adapter and other Schmidt Cassegrain rear thread s crew-on systems, is compatible with both slip-fit and s crew-on mounting systems. The optics are made with Pyrex glass and comes with dielectric coatings for the most light transmission possible.
Beside eyepieces, a star diagonal is one of the most important accessories. What is the use of a good objective or the best eyepiece if the star diagonal is inferior? We recommend the Astromania 2" 90-degree 99% Enhanced Dielectric Diagonal Mirror to everyone, including those working with high end instruments. The star diagonal permits full illumination of 2” wide field eyepieces.
Adapter 2"-1.25" with Brass Clamp Ring for Telescope
- Both 1.25-inch and 2-inch eyepieces can be used to better meet customer needs.
- This slip fit 2-inch diagonal with 1.25-inch adapter, plus the Schmidt Cassegrain thread to 2-inch accessory adapter and other Schmidt Cassegrain rear thread s crew-on systems, is compatible with both slip-fit and s crew-on mounting systems.
- Multi-layered Dielectric Coatings & 99% Reflectivity
Multi-layered dielectric coatings that order to ensure a maximum reflection of 99% with the highest contrast and optimal sharpness for brighter, sharper images. Comes with dielectric coatings for the most light transmission possible. The residual stress in the plane mirror which can occur with the dielectric vapour deposition process is ruled out here.
- 90° Comfortable Angle
View the object at 90 degrees from the direction the telescope is pointing. This makes observations quite comfortable when the telescope is at or near the zenith.
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A Brass Clamping RingImproved attachment design features a brass clamping ring which does not mar, and provides a more secure connection. 2" - 1.25" reducing sleeve with brass compression ring, non-marring compression safety secures the eyepieces. |
Thread for Eliminate LightEffectively reduce stray light interference, not only improve the brightness of the image, but also effectively reduce the dark edges formed, the edge details of the image are clearer. |
Metal ConstructionThe all body is metal, make the product more durable. A superb diagonal offering excellent mechanical and optical quality. |
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| Astromania 2" 90-degree diagonal 99% | Astromania 2" 45-degree erecting prism diagonal for telescope | Astromania 2" 90-degree mirror diagonal with 93% reflectivity | 1.25" 90-degree diagonal mirror | Astromania 2" SCT 90-degree mirror diagonal with 93% reflectivity | |
| Connection (to the telescope) | 2" | 2" | 2" | 1.25" | 2" |
| Viewing posture | 90° | 45° | 90° | 90° | 90° |
| Coating of optical system | Dielectric | Fully-multi-coated | Dielectric | Fully | Dielectric |
| Correction of vertically reversed image | ? | ? | - | - | - |
| Correction of horizontally reversed image | - | ? | - | - | - |
| Ring clamp | ? | ? | ? | - | ? |
| Filter thread | ? | ? | ? | ? | ? |
| Type of build | Diagonal mirror | Amici prism | Diagonal mirror | 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 | 2" to 1.25" Eyepiece Adapter | - | - | SCT Adapter |
