---
product_id: 67636928
title: "SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing"
brand: "svbony"
price: "153.14 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Svbony"
url: https://www.desertcart.tn/products/67636928-svbony-0-5x-focal-reducer-1-25-inches-fully-multi
store_origin: TN
region: Tunisia
---

# Fully multi-coated optics for max contrast 0.5x focal length reducer for wider views Precision metal build with 28.5x0.6 threaded interface SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing

**Brand:** svbony
**Price:** 153.14 DT
**Availability:** ✅ In Stock

## Summary

> 🌌 See More, Capture Faster, Shine Brighter with SVBONY!

## Quick Answers

- **What is this?** SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing by svbony
- **How much does it cost?** 153.14 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/67636928-svbony-0-5x-focal-reducer-1-25-inches-fully-multi)

## Best For

- svbony enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Integration:** Precision-engineered metal design with standard 1.25" eyepiece threading ensures effortless attachment and rock-solid stability for both visual and astrophotography use.
- • **Expand Your Cosmic Canvas:** Halve your telescope’s focal length to unlock breathtakingly wider fields of view—see more stars, more galaxies, more universe.
- • **Crystal-Clear Contrast Boost:** Fully multi-coated lenses eliminate glare and reflections, delivering sharper, high-contrast images that make every observation pop.
- • **Faster, Sharper Astrophotography:** Cut your imaging time by up to 6x by reducing focal ratio from f/10 to f/5—capture stunning deep-sky shots with less wait and more wow.
- • **Built to Last, Backed by Confidence:** Durable metal construction paired with a 1-year warranty and responsive customer support means your investment is protected for the long haul.

## Overview

The SVBONY 0.5X Focal Reducer is a fully multi-coated, precision metal accessory designed to halve your telescope’s focal length, dramatically widening your field of view for both visual observation and astrophotography. Compatible with 1.25" eyepieces, it enhances contrast and reduces star size on sensors, enabling faster imaging and sharper views. Ideal for professional and enthusiast astronomers seeking to elevate their celestial explorations.

## Description

desertcart.com : SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing : Electronics

Review: Works but needs basic instructions for newbies. - I had to call a few places to get this info: Take the stock lens off the camera. Don't use it with this thing on. Focusing can be touchy. On my Astro Fi 130 with a Pegasus focuser I found that I was overshooting the focus point and seeing nothing because the camera takes a few seconds to get a lock in Sharpcap plus the focuser has 20,650 steps. The range of steps between fuzzing out/seeing anything/fuzzing out again was 150 steps. Until I went from 0 to 20,650 at 100 step intervals waiting 5 seconds for Sharpcap each time, I couldn't even tell if it would ever work. Finally I got a fair shot of Vega..... I don't know if it's any good for a 5 inch reflector but...eh.
Review: A great way to expand your field of view! - This focal reducer screws into the nose of an astrophotography camera or 1.25" eyepiece. For visual use, it turns a 20mm eyepiece into a 40mm, both decreasing the magnification and increasing the field of view. In astrophotography, the focal reducers does that, but it also reduces the size of stars on the sensor by half, meaning you can image faster with a wider field of view. For example, an f/10 camera/scope is reduced to f/5 will image roughly six times faster (if my math is correct) because the focal reducer concentrates more photons on each well in the sensor. This focal reducer works well and gives a nice view. I highly recommend it!

## Features

- 0.5x focal reducer cuts the telescopes focal length in 0.5 times of original's to get a wider field of view
- Fully anti-reflection coatings on all air-glass surfaces for increased contrast
- The focal reducer is great for visual use for a bigger FOV and is indispensable when CCD imaging
- Fully metal structure design;both the ends of the interface part is 28.5x0.6 thread
- Directly connect the interface to the eyepiece;there is a very good performance in both visual and photography

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07923SJB4 |
| Best Sellers Rank | #30 in Telescope Eyepieces |
| Brand | SVBONY |
| Coating | Fully Multi Coated |
| Compatible Devices | TELESCOPE |
| Customer Reviews | 4.1 out of 5 stars 205 Reviews |
| Exit Pupil Diameter | 63.5 Millimeters |
| Eye Piece Lens Description | FMC |
| Finderscope | Reflex |
| Focal Length Description | 20 millimeters |
| Focus Type | Manual Focus |
| Item Dimensions D x W x H | 2"D x 0.8"W x 2"H |
| Item Weight | 0.04 Pounds |
| Manufacturer | SVBONY |
| Manufacturer Part Number | FUSF9154A |
| Model Name | FUSF9154A |
| Model Number | FUSF9154A |
| Mount | Equatorial Mount |
| Objective Lens Diameter | 31.75 Millimeters |
| Optical Tube Length | 20 Millimeters |
| Optical-Tube Length | 20 Millimeters |
| Power Source | focal reducer |
| Telescope Mount Description | Equatorial Mount |
| UPC | 609378745393 609378745546 |
| Warranty Description | We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours |
| Zoom Ratio | 2:1 |

## Product Details

- **Brand:** SVBONY
- **Eye Piece Lens Description:** FMC
- **Finderscope:** Reflex
- **Focus Type:** Manual Focus
- **Model Name:** FUSF9154A
- **Objective Lens Diameter:** 31.75 Millimeters
- **Optical Tube Length:** 20 Millimeters
- **Power Source:** focal reducer
- **Product Dimensions:** 2"D x 0.8"W x 2"H
- **Telescope Mount Description:** Equatorial Mount

## Images

![SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing - Image 1](https://m.media-amazon.com/images/I/61xXnxB5hlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works but needs basic instructions for newbies.
*by K***R on May 20, 2021*

I had to call a few places to get this info: Take the stock lens off the camera. Don't use it with this thing on. Focusing can be touchy. On my Astro Fi 130 with a Pegasus focuser I found that I was overshooting the focus point and seeing nothing because the camera takes a few seconds to get a lock in Sharpcap plus the focuser has 20,650 steps. The range of steps between fuzzing out/seeing anything/fuzzing out again was 150 steps. Until I went from 0 to 20,650 at 100 step intervals waiting 5 seconds for Sharpcap each time, I couldn't even tell if it would ever work. Finally I got a fair shot of Vega..... I don't know if it's any good for a 5 inch reflector but...eh.

### ⭐⭐⭐⭐⭐ A great way to expand your field of view!
*by T***S on November 29, 2024*

This focal reducer screws into the nose of an astrophotography camera or 1.25" eyepiece. For visual use, it turns a 20mm eyepiece into a 40mm, both decreasing the magnification and increasing the field of view. In astrophotography, the focal reducers does that, but it also reduces the size of stars on the sensor by half, meaning you can image faster with a wider field of view. For example, an f/10 camera/scope is reduced to f/5 will image roughly six times faster (if my math is correct) because the focal reducer concentrates more photons on each well in the sensor. This focal reducer works well and gives a nice view. I highly recommend it!

### ⭐⭐⭐⭐ It works but with some caveats
*by D***C on October 2, 2021*

I bought this focal reducer with the hope that I could use it with my 6SE telescope and two digital cameras. The threads fit the 1.25" threads on my eye pieces and cameras with appropriate adapters. Fit was not a problem at all. I had no problem getting my image into focus using this reducer with the SV305 camera. However, I could not get the right distance to bring anything into clear focus using my Canon 450D dslr. I have not been able to find the right combination of adapters to make it work - I've tried. The best I could do was use an eyepiece projection adapter, but the vignette was terrible despite a focused image. This 0.5x focal reducer did increase the field of view for the sv305 camera. The center of the image is fantastic. I was able to actually use the sv305 with this focal reducer to capture smaller deep sky targets - see the photos of M2, M30 the Jellyfish cluster, and M27 the dumbbell nebula. Unfortunately the outer area suffers from distortion. Stars are elongated and chromatic distortions are present. A field flattener is needed to help correct this. Its not a fault of this particular focal reducer. Pretty much any focal reducer will have the same effect on its own. If you are looking to increase the field of view this focal reducer will work providing about a 50% increase in the field of view assuming you can get the fight focal distance. Just don't expect it to do miracles. Its not the same as the much more expensive field reducers with field flatteners and shouldn't be compared to them. For daytime images this actually works even better as the edge distortions are much less noticeable.

## Frequently Bought Together

- SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing
- SVBONY Telescope Filter 1.25 inches UHC Filter Astrophotography to Improve The Image Contrast Reduces Light Pollution (1.25 inch)
- SVBONY Telescope Filter, 1.25 inches UV IR Cut Block Filter, Multi Coated Infra Red Filter Keep Planetary Images Sharp, for CCD Digital Astrophotography

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/67636928-svbony-0-5x-focal-reducer-1-25-inches-fully-multi](https://www.desertcart.tn/products/67636928-svbony-0-5x-focal-reducer-1-25-inches-fully-multi)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-16*