Astromania Telescope Diagonal 2 Inch 90-Degree Diagonal Mirror 99% Reflective Dielectric Coating Erect Image with 1.25 Inch Adapter - Provide a Much Brighter Image Than with an Ordinary Star Diagonal

Astromania 2" 90-degree 99% Enhanced Dielectric Diagonal Mirror uses multi-layered dielectric coatings in order to guarantee 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 screw-on systems, is compatible with both slip-fit and screw-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. 
 

•  Multi-layered Dielectric Coatings & 99%Reflectivity
Multi-layered dielectric coatings that order to guarantee 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 zeni-th.
 

• The 2 inch telescope diagonal features a 99 percent reflective surface; the optics are crafted from Pyrex glass; additionally; equipped with an SCT interface and a 1.25-inch adapter; significantly broadening the range of compatible telescopes and accessories.
• Multi Layered Dielectric Coatings: Dielectric coatings on the super-flat mirror reduce reflected light loss; providing a surface with over 99% reflectivity for brighter and harper images; which is highly beneficial for astronomical observations.
• Wide Compatibility: Suitable for refractors included Schmidt-Cassegrains; ACF; EdgeHD and Maksutov-Cassegrains; it can be connected to other eyepieces; barlow lens and filters; among other accessories; via a 1.25-inch adapter.
• 90 Degrees Design: The Astromania 2 inch 90-Degree 99% Dielectric Diagonal Mirror adopts a 90 degrees design; which can provide you with a better observation experience during visual observation .
• Premium Aluminum Material: It is constructed from aluminum alloy; which significantly enhances the star diagonal longevity; equipped with brass compression ring; non-marring compression safety secures the eyepieces.

• 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.