---
product_id: 362339084
title: "N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners)"
brand: "n /a"
price: "¥15515"
currency: JPY
in_stock: true
category: "N /A"
url: https://www.desertcart.jp/products/362339084-n-a-newton-reflector-telescope-main-mirror-d114f900mm-with-short
store_origin: JP
region: Japan
---

# 900mm focal length for sharp views 114mm K9 glass main mirror Aluminum + oxide coated mirror surface N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners)

**Brand:** n /a
**Price:** ¥15515
**Availability:** ✅ In Stock

## Summary

> 🔭 Unlock the universe—see planets like never before!

## Quick Answers

- **What is this?** N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) by n /a
- **How much does it cost?** ¥15515 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/362339084-n-a-newton-reflector-telescope-main-mirror-d114f900mm-with-short)

## Best For

- n /a enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable Design:** Lightweight 13.7 oz build with altazimuth mount makes stargazing on the go a breeze.
- • **Precision Planetary Focus:** 900mm focal length ensures detailed, crisp images of planets and celestial bodies.
- • **Crystal-Clear Cosmic Views:** 114mm diameter K9 glass main mirror delivers stunning clarity for beginners and pros alike.
- • **Durable Reflective Coating:** Aluminum and protective oxide film maximize light reflection and longevity.
- • **User-Friendly Manual Focus:** Effortlessly adjust focus with a smooth manual mechanism—perfect for all ages and skill levels.

## Overview

This Newtonian reflector telescope features a high-quality 114mm K9 glass main mirror with a 900mm focal length and a 25mm short-axis secondary mirror. Its aluminum and oxide-coated surfaces enhance light reflection for vivid planetary imaging. Designed for beginners and enthusiasts, it offers manual focus and a portable altazimuth mount, making it ideal for adults and children eager to explore the night sky.

## Description

1. The company is committed to optical spherical lenses, optical prisms, reflectors, achromatic lenses, cemented lenses, cylindrical lenses, windows and other optical components can be designed according to requirements, providing you with the best products and services is our aim2. The main mirror is made of K9 glass with a diameter of 114mm, and the focal length is about 900mm3. The minor axis (short side diameter) of the secondary mirror is 25mm, spherical mirror, aluminized and protective film4. Suitable for adult telescope, children's telescope, astronomical beginner telescope, children's beginner telescope, children's telescope toy, astronomical telescope, telescope personnel, adult travel telescope5. Based on the feedback from my friends, you can shoot a few planets.6. Independent product packaging brings you a different shopping experience7. This is an attached area for astronomical telescope lovers, you can buy it as you need8. Used as an accessory for astronomical telescopes

## Features

- 1. Material: K9 glass
- 2. Model: Main mirror D114F900 with auxiliary mirror 25mm
- 3. Size: The main mirror diameter is 114mm, the focal length is 900mm, and the minor axis of the secondary mirror is 25mm.
- 4. The surface is coated with aluminum film and aluminum oxide protective film
- 5. Realistic shooting effect: can shoot planets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08C2XPD27 |
| Best Sellers Rank | 199,156 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 599 in Telescopes |
| Box Contents | NO |
| Brand | N /A |
| Brand Name | N /A |
| Coating | Coated |
| Compatible Devices | Camera |
| Customer Reviews | 5.0 out of 5 stars 1 Review |
| Exit Pupil Diameter | 25 Millimeters |
| Eye Piece Lens Description | Barlow |
| Eye piece lens description | Barlow |
| Field Of View | 1.65 Degrees |
| Finderscope | Reflex |
| Focal Length Description | 900 millimeters |
| Focus Type | Manual Focus |
| Item Dimensions D x W x H | 127D x 13W x 127H millimetres |
| Item Weight | 13.7 Ounces |
| Manufacturer | N /A |
| Manufacturer Part Number | D114F900/25mm |
| Model Name | RM |
| Model Number | D114F900/25mm |
| Model name | RM |
| Mount | Altazimuth Mount |
| Objective Lens Diameter | 25 Millimetres |
| Objective lens diameter | 25 Millimetres |
| Optical tube length | 900 Millimetres |
| Optical-Tube Length | 900 Millimetres |
| Product Features | High-quality K9 glass main mirror, Beginner-friendly design |
| Telescope mount description | Altazimuth Mount |
| UPC | 762409866570 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** N /A
- **Optical tube length:** 900 Millimetres
- **Eye piece lens description:** Barlow
- **Objective lens diameter:** 25 Millimetres
- **Telescope mount description:** Altazimuth Mount
- **Product dimensions:** 127D x 13W x 127H millimetres
- **Focus type:** Manual Focus
- **Finderscope:** Reflex
- **Item weight:** 13.7 Ounces
- **Compatible devices:** Camera

## Images

![N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) - Image 1](https://m.media-amazon.com/images/I/41hUROocpUL.jpg)
![N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) - Image 2](https://m.media-amazon.com/images/I/311og7nn+pL.jpg)
![N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) - Image 3](https://m.media-amazon.com/images/I/41MWBp+R+HL.jpg)
![N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) - Image 4](https://m.media-amazon.com/images/I/41y3J-0faQL.jpg)
![N /A Newton Reflector Telescope Main Mirror D114F900mm with Short-axis Secondary Mirror 25mm, Manual Focus, Beginner, Adults and Children (Astronomy Beginners) - Image 5](https://m.media-amazon.com/images/I/41u6pJEn2ML.jpg)

## Questions & Answers

**Q: Is this a parabolic mirror ?**
A: No. Simple spherical mirror.

**Q: Does it come in 10” sets at 40$?**
A: No. 10" mirrors are many hundreds. These are 114mm so about 4.5" or so

**Q: What is the thickness of the primary and secondary?**
A: the primary mirror thickness is 14.2mm, secondary mirror thickness is 4.8mm

**Q: Will it fit a 10” reflector telescope?  That’s all I want to know**
A: It will fit and leave a lot of empty space; this is about the diameter of a DVD

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-31*