---
product_id: 72014762
title: "Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25\" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast"
brand: "astromania"
price: "€ 296.97"
currency: EUR
in_stock: true
reviews_count: 4
category: "Astromania"
url: https://www.desertcart.pt/products/72014762-stereo-binocular-viewer-for-telescopes-featuring-an-adapted-1-25
store_origin: PT
region: Portugal
---

# Multi-coated BAK-4 prisms Dual 32mm Plossl eyepieces 1.25" barrel fit Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast

**Brand:** astromania
**Price:** € 296.97
**Availability:** ✅ In Stock

## Summary

> 🌌 Double your vision, double your cosmos!

## Quick Answers

- **What is this?** Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast by astromania
- **How much does it cost?** € 296.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/72014762-stereo-binocular-viewer-for-telescopes-featuring-an-adapted-1-25)

## Best For

- astromania enthusiasts

## Why This Product

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

## Key Features

- • **Complete Eyepiece Set:** Comes with two matched 32mm Plossl eyepieces secured by scratch-proof compression rings—ready to upgrade your setup.
- • **Immersive 3D Stargazing:** Experience almost 3D views with both eyes for relaxed, natural observing—no more squinting!
- • **Premium Optical Clarity:** Multi-coated BAK-4 prisms minimize reflections and maximize contrast for stunning deep-space and planetary views.
- • **Universal Compatibility:** Seamlessly adapts to Newtonian, refractor, and Schmidt-Cassegrain telescopes with easy manual focus.
- • **Versatile Magnification Boost:** Includes 1.85x & 3x glass path correctors for flexible, sharp focusing across multiple telescope types.

## Overview

The Astromania Stereo Binocular Viewer transforms your telescope into a dual-eye powerhouse with 1.25" barrel compatibility and two 32mm Plossl eyepieces. Featuring multi-coated BAK-4 prisms and 1.85x & 3x magnification correctors, it delivers enhanced contrast and nearly 3D observing comfort. Compatible with a wide range of telescopes, this compact, lightweight accessory elevates your stargazing experience with superior optical clarity and ergonomic design.

## Description

desertcart.com : Astromania Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast : Electronics

Review: Quality product at a good price and exactly as described - Tested with F5 achromatic refractor. Not the ideal telescope. Very good image of the moon although it did not focus directly, if it did with both barlow lenses included. Saturn although small, its characteristic is noted. It was also tested with svbony 17mm plossl eyepieces. At the moment with this F5 telescope, I don't think it's necessary to try more lens combinations. Updated After more than a year, I will explain according to my opinion why they are not for everyone. Sometimes I have not been able to emerge the image. But more than once I have achieved more than 240x on the moon. They have worked well on planets and some nebulae and open clusters. Sometimes small objects do not emerge but large ones do. They improve contrast at the expense of less light, although in general the image is more relaxed with both eyes. That is why I have purchased several sets of eyepieces that work very well on them and are not extremely expensive. svbony 40 plossl 25 plossl 15 red line 10 flat field " does not have a slot". These pieces can be unscrewed from the barrel and inverted. Then the slot would be at the bottom. Another high quality item was the oca 2x from William Optics which is sold by Agena. This provides better image quality than the 1.85 of the binoviewrs. Why give them more than one chance if the image doesn't emerge the first time? If you have not rested well even though you feel well, the image may not emerge. Do not drink alcoholic beverages before or during use. It is an excellent test to verify that you are no longer well even if you feel wonderful. If you take any medication, make sure it does not interfere in any way with your alertness. Even if you feel fine, it will probably cause problems for the image to emerge. The first time, I recommend trying during the day with some large and one small distant object. Also try starting to focus without adjusting the eyepieces and then adjust gently. At the moment all the named combinations work, some if not others, with these telescopes. In a refractor it is ideal to have, if applicable, 1.25 and 2 diagonal to be able to focus certain combinations. 120mm f5 refractor 105mm f13 mak 90mm f5.5 refractor 200mm f6 dobsonian But if you want to keep it simple, I only recommend as an improvement, the oca from William Optics.
Review: Best performance in astro for under $200? - I used this for white light solar observing and it has passed amazingly. Very sharp! My unit came with scratches on the body hinge cover and upper eyepiece clamps but hearing about some other issues on these I am so far going to keep it. Perfect clean optics and mechanical is smooth. Eyepiece holders hold secure and eyepieces can be changed out. Hoping my 3D ones work. IPD distance is high. I read minimum is 55 to 60. Mine is around 62 and I can just merge the images. Any wider and I could not use it. I like the compactness and weight of the unit is the best I've used. Very happy with the unit and a bargan over other models by far. I really believe we are getting a deal on these because of assembly cosmetic second but they cannot be easy to assemble which is probably an understatement. Well done. Everyone should have one. Edit: returned and purchased another that is near perfect fit and finish. Very surprising to see clean views in these. High mag is better in better viewer, to be sure but amazing for price.

## Features

- Almost 3D Observing Possible: A binocular viewer turns your telescope into binoculars; unlike the common and rather un-natural one-eye observing way; you can observe in a fully relaxed manner without squinting and experience a stronger sense of space
- Equipped with Two Additional Eyepieces: The device comes with two 1.25 inch 32 mm Plossl eyepieces secured by compression rings without scatching them; a stereo viewer requires a matched pair of 1.25-inch eyepieces; other sizes are sold separately
- With 1.85x and 3x Correctors: Two glass path correctors are offered; they multiplies magnification 1.85x and 3x like a Barlow lens but it will allow for proper focusing; with these two glass path correctors; more telescopes can be adapted
- Multi Coated BAK4 Prisms: The BAK-4 prism is equipped with multiple layers of coating on its optical surfaces; aiming to minimize reflection and enhance the contrast for deep-space or solar system objects while reducing light loss
- Compatible with Various Telescopes: A novel optical system simplifies the focusing process; even when using Newtonian telescopes; short refracting telescopes and Schmidt-Cassegrain telescopes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077MZ2ZWB |
| Age Range Description | Adult |
| Best Sellers Rank | #124 in Telescope Eyepieces |
| Brand | Astromania |
| Coating | Multi-Coated |
| Customer Reviews | 4.0 4.0 out of 5 stars (35) |
| Diopter Adjustment Range | ±5 diopters |
| Enclosure Material | Glass, Metal |
| Exit-Pupil Diameter | 17.3 Millimeters |
| Eye Relief | 15 Millimeters |
| Field of View | 70 Degrees |
| Focus Description | Manual Focus |
| Focus Type | Manual Focus |
| Item Weight | 1.95 Pounds |
| Magnification Maximum | 1.85 x |
| Manufacturer | Astromania |
| Manufacturer Part Number | SKU_AM_ZVSB2 |
| Model Number | SKU_AM_ZVSB2 |
| Mount Type | Tripod Mount |
| Objective Lens Diameter | 32 Millimeters |
| Prism Type | BAK-4 Prisms with Multi-Coated Optical Surfaces |
| Size Map | Compact |
| Specific Uses | Star Gazing |
| Water Resistance Level | Not Water Resistant |
| Zoom Ratio | 3 multiplier_x |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Astromania
- **Magnification Maximum:** 1.85 x
- **Objective Lens Diameter:** 32 Millimeters
- **Specific Uses For Product:** Star Gazing

## Images

![Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast - Image 1](https://m.media-amazon.com/images/I/71xqXnbx6kL.jpg)

## Questions & Answers

**Q: Does this one come with two 30mm eyepieces?  I don't see them pictured and they are not mentioned in the description.**
A: Yes they do come with two unknown mm eyepieces. Use quality plossls of same mm. LOA recommended.  21/32mm

**Q: Does it attach to the gskyer telescopes? And work better?
Thanks**
A: Short answer, yes. Just like an eyepiece, the binoviewer slides into the 1 1/4 inch tube and you tighten it in place. You then put two identical eyepieces into the back of the viewer. The biggest "improvement" is that it will give your brain what it wants-a stereo view. 
Our brains do not like seeing through one eye. This piece of equipment means you don't need to squint your eyes or do other things like that to see through the telescope. To some it is a huge difference and you see much more naturally. I love them! Biggest thing is to have two eyepieces of same make and power. You can just buy a pair at a time or you can buy, say, two kits like Celestron has with a range of eyepieces depending on your budget

**Q: I want this but it costs more than my telescope. is it worth it?**
A: IF YOUR TELESCOPE IS WORTH THAT MUCH I DONT THINK IT WOULD DO THAT GOOD FOR YOU
IN SEEING OBJECTS

**Q: what's the IPD?**
A: Inter Pupillary Distance.  It is the distance from the center of the pupil in one eye to the center of the pupil in the other eye.  The Bino-Viewer is adjustable and the distance from the center of one eyepiece to the center of the other eyepiece should match your IPD.  Simply put, lining up the eyepieces with your eyes, similar to conventional binoculars.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product at a good price and exactly as described
*by C***I on June 9, 2023*

Tested with F5 achromatic refractor. Not the ideal telescope. Very good image of the moon although it did not focus directly, if it did with both barlow lenses included. Saturn although small, its characteristic is noted. It was also tested with svbony 17mm plossl eyepieces. At the moment with this F5 telescope, I don't think it's necessary to try more lens combinations. Updated After more than a year, I will explain according to my opinion why they are not for everyone. Sometimes I have not been able to emerge the image. But more than once I have achieved more than 240x on the moon. They have worked well on planets and some nebulae and open clusters. Sometimes small objects do not emerge but large ones do. They improve contrast at the expense of less light, although in general the image is more relaxed with both eyes. That is why I have purchased several sets of eyepieces that work very well on them and are not extremely expensive. svbony 40 plossl 25 plossl 15 red line 10 flat field " does not have a slot". These pieces can be unscrewed from the barrel and inverted. Then the slot would be at the bottom. Another high quality item was the oca 2x from William Optics which is sold by Agena. This provides better image quality than the 1.85 of the binoviewrs. Why give them more than one chance if the image doesn't emerge the first time? If you have not rested well even though you feel well, the image may not emerge. Do not drink alcoholic beverages before or during use. It is an excellent test to verify that you are no longer well even if you feel wonderful. If you take any medication, make sure it does not interfere in any way with your alertness. Even if you feel fine, it will probably cause problems for the image to emerge. The first time, I recommend trying during the day with some large and one small distant object. Also try starting to focus without adjusting the eyepieces and then adjust gently. At the moment all the named combinations work, some if not others, with these telescopes. In a refractor it is ideal to have, if applicable, 1.25 and 2 diagonal to be able to focus certain combinations. 120mm f5 refractor 105mm f13 mak 90mm f5.5 refractor 200mm f6 dobsonian But if you want to keep it simple, I only recommend as an improvement, the oca from William Optics.

### ⭐⭐⭐⭐ Best performance in astro for under $200?
*by B***M on July 4, 2021*

I used this for white light solar observing and it has passed amazingly. Very sharp! My unit came with scratches on the body hinge cover and upper eyepiece clamps but hearing about some other issues on these I am so far going to keep it. Perfect clean optics and mechanical is smooth. Eyepiece holders hold secure and eyepieces can be changed out. Hoping my 3D ones work. IPD distance is high. I read minimum is 55 to 60. Mine is around 62 and I can just merge the images. Any wider and I could not use it. I like the compactness and weight of the unit is the best I've used. Very happy with the unit and a bargan over other models by far. I really believe we are getting a deal on these because of assembly cosmetic second but they cannot be easy to assemble which is probably an understatement. Well done. Everyone should have one. Edit: returned and purchased another that is near perfect fit and finish. Very surprising to see clean views in these. High mag is better in better viewer, to be sure but amazing for price.

### ⭐⭐ Several mechanical and optical issues. Requires too much fiddling.
*by M***Y on October 12, 2020*

I really wanted to make these work but I found I was spending more time fiddling with these bino viewers than observing. There are number of issues: - width adjustments were difficult because they were too loose and collapsed too easily - right eyepiece holder didn’t tighten correctly. It would just keep spinning. - merging issues are difficult to correct. It was almost impossible to get images merged and focused in both eyes - 1.85x and 3x barlows showed heavy distortion. I had to use my own Barlow to get better results. - included 32mm eye pieces have too much eye relief. You have to pull back too far too see well. - compression rings don’t hold eyepieces with grooved barrels which are fairly common. Overcoming all these issues yielded nice results but required too much time and effort to achieve. I was also disappointed by how dust was inside the viewers. They didn’t seem like they were new. In the end I gave up after a few weeks of trying to make them work and returned them.

## Frequently Bought Together

- Astromania Stereo Binocular Viewer for Telescopes - Featuring an Adapted 1.25" Barrel and Two 32mm Plossl Eyepieces - Almost 3D Observing with Both Eyes and Enhance The Image Contrast
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-24*