---
product_id: 397137091
title: "Mugast 1.25\" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS"
brand: "mugast"
price: "₩235823"
currency: KRW
in_stock: false
reviews_count: 3
category: "Mugast"
url: https://www.desertcart.kr/products/397137091-mugast-1-25-4mm-hd-planetary-eyepiece-black-58-degree
store_origin: KR
region: South Korea
---

# 58° wide field of view 4mm focal length for high magnification 1.25" standard fit Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS

**Brand:** mugast
**Price:** ₩235823
**Availability:** ❌ Out of Stock

## Summary

> 🔭 See the cosmos like never before — don’t just observe, experience!

## Quick Answers

- **What is this?** Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS by mugast
- **How much does it cost?** ₩235823 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/397137091-mugast-1-25-4mm-hd-planetary-eyepiece-black-58-degree)

## Best For

- mugast enthusiasts

## Why This Product

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

## Key Features

- • **Comfort Meets Convenience:** Foldable rubber eyecup and 15mm eye relief ensure comfortable, extended viewing sessions.
- • **Budget-Friendly Stargazing:** Affordable yet powerful eyepiece perfect for astronomy enthusiasts and curious kids alike.
- • **Crystal-Clear Planetary Views:** Eliminates chromatic aberration for sharp, vibrant images of Moon, Jupiter, Mars & Saturn.
- • **Precision Multi-Coated Optics:** Fully multi-coated green lens maximizes light transmission and image detail.
- • **Immersive Wide Field Experience:** 58° field of view lets you explore deep sky objects with stunning clarity and contrast.

## Overview

The Mugast 1.25" 4mm HD Planetary Eyepiece offers a 58-degree wide field of view with fully multi-coated optics designed to minimize chromatic aberration and light scattering. Ideal for detailed planetary and deep sky observations, it features a comfortable foldable rubber eyecup and 15mm eye relief, fitting standard 1.25" telescope barrels. Lightweight and budget-friendly, it’s perfect for both amateur astronomers and families seeking immersive stargazing.

## Description

Features: Standard 1.25" inner thread to fit light filters Comes with lens caps for both ends Focal length: 4mm Large eye lens diameter: 21mm Comfortable long eye relief: 15mm Net Weight: 160g Package Includes: 1xSWA 1.25" 4MM 58-Degree Planetary Eyepiece

Review: This works good enough for the price I would recommend better quality if you have the money but if you on a budget these are good.
Review: I wanted to like this eyepiece and ultimately returned it. Build seems solid and has a decent field of view. Image quality and clarity was lacking which is why I returned it.

## Features

- 【PLANETARY OBSERVATION】Excellent in virtually eliminating lateral chromatic aberration and light scattering while maintaining excellent clarity, contrast and clarity, mainly for planetary observations (Moon, Jupiter, Mars, Saturn, etc.), but also for deep sky objects.
- 【HIGH-PERFORMANCE】The 1.25" fully multi-coated green lens provides maximum detail and clarity throughout the entire 58-degree field of view. Offers excellent image contrast and light transmission with minimal lateral chromatic aberration and scattering.
- 【EASY TO USE】58 degree wide field of view, foldable rubber eyecup, very convenient for your daily use, the product is easier to store and clean. Suitable for astronomy enthusiasts and also as a children.
- 【PERFECT EXPERIENCE】Get higher magnification with a short focal length. High-contrast imaging brings you a better viewing experience in a comfortable environment. With a cost-effective eyepiece, you'll get more detail than you've ever seen before.
- 【CUSTOMER SERVICE】If you have any questions about your products or have any comments on us, you are welcome to send us an email, we will give you a perfect after-sales experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VQK8K16 |
| Item model number | Mugastg7f1t8u9dr |
| Manufacturer | Mugast |
| Product Dimensions | 11 x 6 x 5 cm; 222 g |

## Images

![Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS - Image 1](https://m.media-amazon.com/images/I/515UBLlTGoL.jpg)
![Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS - Image 2](https://m.media-amazon.com/images/I/51a7NIdFhkL.jpg)
![Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS - Image 3](https://m.media-amazon.com/images/I/61IRmiE6YHL.jpg)
![Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS - Image 4](https://m.media-amazon.com/images/I/61KazioYlyL.jpg)
![Mugast 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS - Image 5](https://m.media-amazon.com/images/I/61W+P9UBYmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 23 February 2025*

This works good enough for the price I would recommend better quality if you have the money but if you on a budget these are good.

### ⭐⭐⭐ Review
*by S***N on 23 November 2022*

I wanted to like this eyepiece and ultimately returned it. Build seems solid and has a decent field of view. Image quality and clarity was lacking which is why I returned it.

### ⭐⭐ Review
*by M***Y on 16 October 2021*

I bought one of these and it arrived in a seemingly new box, inside a plastic bag, and even with a little desicant silica pouch, so looked good to start off with. Unfortunately metal retaining rings on both ends were loose (see photo with arrow) and the eyepiece had the sound of a loose element. Even with a little finger tightening of the retainers, this unit still suffers from a loose element. You can hear it in the short video that I have included. Gave it a shot on the telescope and performance was marginal; not what you would expect from the solid machining and reputation of TMB eyepieces. I set up a return/exchange with Amazon, which went smoothly and quickly. Unfortunately, the second unit received suffers from the identical problem. Sorry to say I will be returning this as well. If you can live with the question of why a lens element is loose inside this eyepiece and the resulting marginal views, the one thing this has going for it is that it does provide a nice wide field of view, as advertised. I am just sorry that this appears to be some kind of factory second or something. No reason for there to be loose elements inside.

## Frequently Bought Together

- 1.25" 4mm HD Planetary Eyepiece, Black 58 Degree Planetary Deep Sky Eyepiece for Telescope JS
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*