AliExpress.io
High Quality D127F900 Newton Reflection Primary Mirror With 35mm Secondary Mirror For DIY Astronomical Telescope Accessories

High Quality D127F900 Newton Reflection Primary Mirror With 35mm Secondary Mirror For DIY Astronomical Telescope Accessories

4.814+ sold
£19.39£38.02
49% OFF
Buy on AliExpress

You will be redirected to AliExpress to complete your purchase

Specifications

Brand Name
Arcturus
Magnification
1
Objective Lens Diameter
1
Eyepiece diameter
1
Field of View
1
Type
Monocular
High-concerned chemical
None
Water Resistance Level
IPX4
Origin
Mainland China
Model Number
AR0022

Product Description

Caliber: 127mm


Focal length: 900mm


D127 F900 reflective objective lens group, the primary mirror is a spherical mirror, aluminized and protective film, the secondary mirror is an elliptical plane, and the minor axis of the secondary mirror is 35mm. It is a good choice for lovers of diy telescopes.






Pros & Cons

Pros

  • Precise 127mm/900mm optics for clear viewing
  • Aluminized protective coating for durability
  • Ideal for DIY telescope enthusiasts
  • Compact secondary 35mm mirror

Cons

  • Spherical primary may have minor aberrations vs parabolic
  • No eyepiece or full assembly included
  • Limited water resistance IPX4
  • Requires DIY skills for integration

Common Questions

What are the specifications of the D127F900 Newton Reflection Primary Mirror?

127mm caliber, 900mm focal length; primary spherical mirror aluminized, 35mm secondary elliptical plane mirror.

What material and compatibility for this DIY astronomical telescope accessory?

High-quality reflection mirrors ideal for DIY telescope builds.

Is this primary mirror suitable for amateur astronomers?

Yes, perfect choice for DIY telescope lovers with precise optics.

What is the origin and model number of this telescope mirror set?

Origin Mainland China, model AR0022 by Arcturus brand.

Does this mirror set include protective features?

Primary mirror has aluminized coating with protective film.

Product information last updated on March 24, 2026