Feature

●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.


Description

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Astromania 2" 90-degree mirror diagonal with 93% reflectivity Astromania 1.25" 90-Degree Diagonal Mirror Astromania 1.25" 90-Degree Erecting Prism Astromania 2" 90-degree diagonal 99% Astromania 2" SCT 90-degree mirror diagonal with 93% reflectivity
Customer Reviews
4.8 out of 5 stars
16
3.8 out of 5 stars
45
4.7 out of 5 stars
92
4.8 out of 5 stars
7
5.0 out of 5 stars
2
Price $65.99 $20.97 $27.97 $147.97 $93.99
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 reversed image - - ✓ ✓ -
Correction of horizontally reversed image - - ✓ - -
Ring clamp ✓ - - ✓ ✓
Filter thread ✓ ✓ ✓ ✓ ✓
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 - - - Extension tube/2" to 1.25" Eyepiece Adapter SCT Adapter
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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 zenith.

  • 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 Asin: B01M5BQAC5 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
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  • 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.

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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 Cover
3 1x Dust Plug