---
product_id: 377910683
title: "SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter"
brand: "svbony"
price: "€ 167.83"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/377910683-svbony-2-inches-90-deg-dielectric-mirror-diagonal-for-astronomical
store_origin: NL
region: Netherlands
---

# 99% Reflectivity 90° Comfort View Durable Metal Build SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter

**Brand:** svbony
**Price:** € 167.83
**Availability:** ✅ In Stock

## Summary

> 🔭 Elevate Your Stargazing Experience!

## Quick Answers

- **What is this?** SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter by svbony
- **How much does it cost?** € 167.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/377910683-svbony-2-inches-90-deg-dielectric-mirror-diagonal-for-astronomical)

## Best For

- svbony enthusiasts

## Why This Product

- Trusted svbony brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Design:** Crafted with solid aluminum housing for long-lasting durability.
- • **Unmatched Clarity:** Experience a stunning 99% reflectivity for crystal-clear views.
- • **Non-Marring Security:** Brass compression rings protect your valuable eyepieces from damage.
- • **Versatile Compatibility:** Easily fits both 2" and 1.25" eyepieces for ultimate flexibility.
- • **Future-Proof Performance:** Dielectric surface ensures consistent reflectance that outlasts traditional options.

## Overview

The SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal is a premium accessory for astronomical telescopes, featuring a 99% reflectivity dielectric surface, solid aluminum construction, and compatibility with both 2" and 1.25" eyepieces. Designed for durability and optimal performance, it ensures a comfortable viewing angle while protecting your equipment.

## Description

SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter

## Features

- Excellent Quality Dielectric Diagonal; Mirror Star Diagonal - 99% Reflectivity；Provides a Comfortable 90 Degree View from your Refractor; Fits Standard 2" (50.8 mm) Diameter Focus Tubes; Use Both 2" (50.8 mm) and 1.25" (31.75 mm) Eyepieces
- New 2" 90 deg 99% Dielectric Mirror Diagonal for Telescope With 1.25" adapter; full metal;has a 1/10th wave flat optical glass surface;solid aluminum housing;threaded to accept standard 2" filters;The 2" eyepiece holder uses a non-marring brass compression ring to secure your valuable eyepieces. The 1.25" adapter also has a non-marring brass compression ring
- Both sizes of eyepieces may be used and are protected from dings and scratches that would result from a standard set-screw. This 2" diagonal works with any Refractor that accepts a 2" star diagonals. It can also be used with Schmidt-Cassegrain or Maksutov-Cassegrain with an optional 2 inch visual back (See below)
- Dielectric diagonal is especially important;A standard aluminized diagonal has about 92% reflectance;And this decreases with time as the aluminum mirror surface ages
- For the vast majority of the visible spectrum;the reflectance does not vary more than about 0.1% below 100%;And the dielectric surface does not age like aluminum;This combination leads to the equivalent of a little more light grasp compared to standard diagonals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 18.67 Ounces |
| Objective Lens Diameter | 20 Millimeters |
| Item Dimensions D x W x H | 1"D x 1"W x 2"H |
| Optical-Tube Length | 50.8 Millimeters |
| Coating | [High-Performance Coating] |
| Power Source | Diagonal mirror |
| Finderscope | Reflex |
| Compatible Devices | telescope |
| Eye Piece Lens Description | wave flat optical glass |
| Mount | 2 inches mount |
| Focus Type | Manual Focus |

## Product Details

- **Brand:** SVBONY
- **Optical tube length:** 50.8 Millimeters
- **Eye piece lens description:** Barlow
- **Objective lens diameter:** 20 Millimeters
- **Telescope mount description:** 2 inches mount

## Images

![SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter - Image 1](https://m.media-amazon.com/images/I/61MqmBoUSoL.jpg)
![SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter - Image 2](https://m.media-amazon.com/images/I/61SBLOXmNTL.jpg)
![SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter - Image 3](https://m.media-amazon.com/images/I/615q6WCpnlL.jpg)
![SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter - Image 4](https://m.media-amazon.com/images/I/61M0R3ZqWKL.jpg)
![SVBONY 2 inches 90 Deg Dielectric Mirror Diagonal for Astronomical Telescope with 1.25 inches Adapter - Image 5](https://m.media-amazon.com/images/I/610VjaEqu-L.jpg)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-28*