---
product_id: 167367167
title: "Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope"
brand: "serounder"
price: "€ 76.93"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.nl/products/167367167-dielectric-mirror-1-25-inch-90-degree-dielectric-mirror-diagonal
store_origin: NL
region: Netherlands
---

# All-surface multilayer coating 1.25-inch precision fit Durable aluminum & steel build Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope

**Brand:** serounder
**Price:** € 76.93
**Availability:** ✅ In Stock

## Summary

> 🔭 Elevate your stargazing game with precision and durability!

## Quick Answers

- **What is this?** Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope by serounder
- **How much does it cost?** € 76.93 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/167367167-dielectric-mirror-1-25-inch-90-degree-dielectric-mirror-diagonal)

## Best For

- serounder enthusiasts

## Why This Product

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

## Key Features

- • **Rugged Durability:** Aluminum alloy housing paired with stainless steel cover ensures long-lasting performance under any conditions.
- • **Filter-Friendly Design:** Threaded interface supports 1.25-inch filters, expanding your observational possibilities.
- • **Premium Optical Clarity:** All-surface multilayer coatings maximize light transmission and minimize reflections for crisp views.
- • **Optimized for Refractors:** Engineered specifically for refracting telescopes to deliver superior image quality—skip the reflective setups.
- • **Seamless 1.25-inch Compatibility:** Fits perfectly with standard 1.25-inch focus seats and eyepieces for effortless setup.

## Overview

This 1.25-inch dielectric mirror diagonal features all-surface multilayer coatings for enhanced light transmission, a robust aluminum alloy and stainless steel construction for longevity, and a threaded interface compatible with 1.25-inch filters. Designed exclusively for refracting telescopes, it ensures sharp, high-contrast views while offering seamless integration with standard eyepieces.

## Description

Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope

## Features

- All-surface multilayer coated.
- Used for 1.25 inch focus seat and 1.25inch eyepiece.
- Interface with 1.25 inch thread can be connected with 1.25in filter.
- Constructed with aluminum alloy housing and stainless steel cover plate, available for long lifespan.
- Not recommended for use in reflective telescopes.

## Product Details

- **Auto Part Position:** Front
- **Item dimensions L x W x H:** 2.56 x 1.38 x 1.18 inches
- **Brand:** Serounder
- **Color:** default
- **Included Components:** Dielectric Mirror
- **Shape:** Rectangular
- **Manufacturer:** Serounder
- **UPC:** 736342466692
- **Lens Curvature Description:** Flat

## Images

![Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope - Image 1](https://m.media-amazon.com/images/I/511ljdK6O4L.jpg)
![Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope - Image 2](https://m.media-amazon.com/images/I/51M74No4jhL.jpg)
![Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope - Image 3](https://m.media-amazon.com/images/I/61oem+xwdIL.jpg)
![Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope - Image 4](https://m.media-amazon.com/images/I/61HAyIDmKTL.jpg)
![Dielectric Mirror, 1.25 Inch 90-degree Dielectric Mirror Diagonal for Telescope - Image 5](https://m.media-amazon.com/images/I/51BnCTWUgvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Same as SVBONY
*by A***C on June 10, 2021*

I had bought the SVBONY one but had an issue with inserting eyepieces due to the brass clamping band edges catching on them (quality control issue I guess). I was going to try exchanging but found this instead that looks exactly the same but unbranded. The clamping didn't cause trouble and it is otherwise the same thing at a lower price.

### ⭐⭐⭐⭐ Loss of light
*by R***O on October 9, 2022*

Compared to the generic diagonal which was half decent there was a definite loss of light good quality build good optics but for some reason there is definitely a loss of light

### ⭐⭐⭐⭐⭐ Great diagonal at a great price
*by J***M on March 15, 2020*

From what I can tell this is an unbranded Svbony diagonal. At the time I ordered it was 1/3 the price of the Svbony. It has worked well for me so far and does not seem to hinder my telescope in any way. Optical clarity seems great, it's all metal, and has a compression ring that holds tight.

## Frequently Bought Together

- Serounder Dielectric Mirror, 1.25 Inch 90-Degree Telescope Diagonal
- Celestron SCT to 2" Adapter, Black
- Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/167367167-dielectric-mirror-1-25-inch-90-degree-dielectric-mirror-diagonal](https://www.desertcart.nl/products/167367167-dielectric-mirror-1-25-inch-90-degree-dielectric-mirror-diagonal)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-19*