---
product_id: 219224677
title: "Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography"
brand: "astromania"
price: "¥21439"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/219224677-astromania-2-inch-star-diagonal-90-degree-mirror-with-93
store_origin: JP
region: Japan
---

# Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

**Brand:** astromania
**Price:** ¥21439
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography by astromania
- **How much does it cost?** ¥21439 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/219224677-astromania-2-inch-star-diagonal-90-degree-mirror-with-93)

## Best For

- astromania enthusiasts

## Why This Product

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

## Description

Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

## Features

- About this item
- 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.

## Images

![Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography - Image 1](https://m.media-amazon.com/images/I/71czRu+NDLL.jpg)
![Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography - Image 2](https://m.media-amazon.com/images/I/61RIZ2K60wL.jpg)
![Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography - Image 3](https://m.media-amazon.com/images/I/715z6r0QodL.jpg)
![Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography - Image 4](https://m.media-amazon.com/images/I/61KPNxCuzaL.jpg)
![Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography - Image 5](https://m.media-amazon.com/images/I/61LznzVcfZL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/219224677-astromania-2-inch-star-diagonal-90-degree-mirror-with-93](https://www.desertcart.jp/products/219224677-astromania-2-inch-star-diagonal-90-degree-mirror-with-93)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*