About 2" 90-Degree Mirror Diagonal with 93% Reflectivity Across Visible Spectrum
90 Degrees Observation Angle
View the object at 90 degree from the direction the telescope is pointing. This makes observations quite comfortable when the telescope is at or near the zeni-th.
What Product To Use With
It fits all rear cells of Schmidt-Cassegrain telescopes equipped with a big, 2" focuser and can use with refractor telescopes with SCT adapter which you can find in our store(NOT INCLUDE).
The advantages in a nutshell:
• 2'' diagonal
• Dielectric coatings
• High optical lens transparency
• 93% reflectivity and 1/10 wave mirror
• The all diagonal body is metal
93% reflectivity&a 1/10 wave mirror&Dielectric coatings
• 93% Reflectivity & A 1/10 Wave Mirror
The 2" diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images and good for astronomical viewing. 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.
• Dielectric Coatings
The 2" diagonal features dielectric, 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.
2'' Diagonal Allows you to take advantage of the wider field of view provided by two inch eyepieces.
The All Metal Diagonal Body The all metal diagonal body is CNC machined.It makes the structure more durable.
A Brass Clamping Ring Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.
Thread for Eliminate Light Effectively 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.
What Is in Package
1
1x Dielectric mirror diagonal
2
1x Dust proof cover
3
1x Dust proof plug
2" 90-degree mirror diagonal with 93% reflectivity across visible spectrum
1.25" 90-degree diagonal mirror
1.25" 90-degree erecting prism
2" 90-degree diagonal 99%
2" SCT 90-degree mirror diagonal with 93% reflectivity across visible spectrum
Connection (to the telescope)
2''
1.25''
1.25''
2''
2''
Viewing posture
90°
90°
90°
90°
90°
Coating of optical system
Dielectric
Fully
Fully
Dielectric
Dielectric
Correction of vertically revers-ed image
-
-
Yes
Yes
-
Correction of horizontally revers-ed image
-
-
Yes
-
-
Ring clamp
Yes
-
-
Yes
Yes
Filter thread
Yes
Yes
Yes
Yes
Yes
Type of build
Diagonal mirror
Diagonal mirror
Amici prism
Diagonal mirror
Diagonal mirror
Type
Deviating optics
Deviating optics
Deviating optics
Deviating optics
Deviating optics
Other contents
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-
-
Extension tube
SCT Adapter
It fits all rear cells of Schmidt-Cassegrain telescopes equipped with a big, 2" focuser and can use with refractor telescopes with SCT adapter which you can find in our store(NOT INCLUDE).
The 2" diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images.
Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product.
Associated with 90°mirror diagonals, which let you view objects that are at a 90°angle from the direction the telescope is pointing.
Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.