---
product_id: 31690422
title: "Agena 1.25\" Starguider Dual ED Eyepiece - 12mm"
brand: "agena astroproducts"
price: "€ 99.03"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/31690422-agena-1-25-starguider-dual-ed-eyepiece-12mm
store_origin: IE
region: Ireland
---

# 60° wide apparent field 12mm focal length precision 1.25" standard fit Agena 1.25" Starguider Dual ED Eyepiece - 12mm

**Brand:** agena astroproducts
**Price:** € 99.03
**Availability:** ✅ In Stock

## Summary

> 🌠 See the stars like never before — don’t just observe, dominate the night sky!

## Quick Answers

- **What is this?** Agena 1.25" Starguider Dual ED Eyepiece - 12mm by agena astroproducts
- **How much does it cost?** € 99.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/31690422-agena-1-25-starguider-dual-ed-eyepiece-12mm)

## Best For

- agena astroproducts enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Switching:** Parfocal design lets you swap eyepieces with minimal refocusing—stay locked in on the cosmos without missing a beat.
- • **Seamless Compatibility:** Standard 1.25" barrel fits most telescopes and accepts common astronomy filters for versatile use.
- • **Optimized Light Control:** Internal baffling and anti-reflection microbaffles minimize glare and light scatter for pristine lunar and planetary detail.
- • **Comfort Meets Performance:** Generous 20mm eye relief and retractable rubber eyecups ensure fatigue-free, immersive stargazing sessions.
- • **Crystal-Clear Planetary Views:** Fully multi-coated optics with 6 lens elements deliver razor-sharp, high-contrast images that rival premium eyepieces.

## Overview

The Agena 1.25" Starguider Dual ED 12mm eyepiece combines a wide 60° field of view with premium fully multi-coated optics and 6 precision lens elements to deliver sharp, high-contrast planetary and lunar images. Featuring a long 20mm eye relief and a rubberized body with retractable eyecups, it offers comfort and durability for extended viewing. Compatible with standard 1.25" telescope barrels and filters, this cost-effective alternative to high-end orthoscopic and Plossl eyepieces is perfect for serious amateur astronomers seeking professional-grade performance without the premium price.

## Description

Agena's StarGuider Dual ED eyepieces are long eye relief eyepieces with a comfortably wide field for planetary observing that also give the sharpness, high contrast, and lack of lateral color and light scatter of the finest orthoscopic and Plossl designs. These can be used in any astronomical telescope that can accept standard 1.25" eyepieces.Unlike many more expensive eyepieces for planetary observing, the Starguider Dual ED 12mm eyepiece maintains an excellent eye relief of 20mm. With six lens elements in this unique design, this eyepiece is fully internally baffled and all internal spacers have antireflection microbaffles on their edges with flat black anodizing to reduce reflections when viewing the Moon and bright planets. Every air to glass surface is broadband multi-coated for peak light transmission and outstanding contrast on subtle lunar and planetary detail. Spherical aberration of the exit pupil is well controlled, so there are no serious blackouts or kidney-bean effects if you move your eye slightly off the axis.The eyepiece has a twist-up eyecup that can be raised or lowered to provide the eye relief you find most comfortable. This eyepiece is parfocal with other focal lengths in this series, minimizing the amount of refocusing needed when switching from eyepiece to eyepiece. It is threaded to accept standard 1.25" astronomy filters and weighs approx. 6oz. Note that the color of the trim on the eyepiece may change at any time and may not exactly match the color depicted above.

Review: Saturn's rings were sharply focused with this eyepiece. - Excellent product recommended for view the Saturn/Jupiter conjunction. Worked great! was able to visualize Saturn's rings and could not before.
Review: Love it love it love it.......what a view! - This eyepiece rivals others costing over twice as much. The field isn't perfectly flat but it's nearly undetectable and will be to most. I only notice the skew when I have a star out of focus and move the image of the object in the eyepiece from edge to edge. Well made and the shape put me off at first but now that I've used it I love the fatness. Makes it VERY secure when you insert it and holding it. Eye relief is great and both my f/5 Meade 6" Schmidt Newtonian and my Orion f/8 XT6 love this eyepiece. I can't wait to try it out on some deep sky objects this fall. Planetary viewing is excellent! I will buy more of these and AgenaAstro is a "stellar" seller!

## Features

- 1.25" eyepiece; 12mm focal length; 60° Apparent Field of view
- Fully multi coated optics; 6 lens elements in 4 groups
- Cost-effective alternative to expensive Orthoscopic and Plossl eyepieces
- Long eye relief of 20mm
- Rubberized body with retractable eyecups for optimum adjustment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YFZLQAY |
| Best Sellers Rank | #392 in Telescope Eyepieces |
| Customer Reviews | 4.7 4.7 out of 5 stars (20) |
| Date First Available | May 28, 2015 |
| Item Weight | 6 ounces |
| Item model number | 8595696952 |
| Manufacturer | Agena AstroProducts |

## Product Details

- **Brand:** Agena AstroProducts
- **Exit Pupil:** 0.6 Millimeters
- **Eye Piece Lens Description:** Plossl
- **Field Of View:** 60 Degrees
- **Finderscope:** Reflex
- **Focal Length Description:** 20 millimeters
- **Focus Type:** Manual Focus
- **Item Weight:** 6 Ounces
- **Lens Coating Description:** Multi-Coated
- **Model Name:** Starguider Dual ED

## Images

![Agena 1.25" Starguider Dual ED Eyepiece - 12mm - Image 1](https://m.media-amazon.com/images/I/71rpHpijluL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Saturn's rings were sharply focused with this eyepiece.
*by S***D on January 18, 2021*

Excellent product recommended for view the Saturn/Jupiter conjunction. Worked great! was able to visualize Saturn's rings and could not before.

### ⭐⭐⭐⭐⭐ Love it love it love it.......what a view!
*by A***T on September 7, 2018*

This eyepiece rivals others costing over twice as much. The field isn't perfectly flat but it's nearly undetectable and will be to most. I only notice the skew when I have a star out of focus and move the image of the object in the eyepiece from edge to edge. Well made and the shape put me off at first but now that I've used it I love the fatness. Makes it VERY secure when you insert it and holding it. Eye relief is great and both my f/5 Meade 6" Schmidt Newtonian and my Orion f/8 XT6 love this eyepiece. I can't wait to try it out on some deep sky objects this fall. Planetary viewing is excellent! I will buy more of these and AgenaAstro is a "stellar" seller!

### ⭐⭐⭐⭐⭐ Good value
*by E***E on August 29, 2019*

After researching eyepieces, I came across the Agena range. The eyepiece is great quality and works well with my eye glasses. I just wish I had bought the 8mm though.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-25*