---
product_id: 26066759
title: "GSO IR Blocking/IR Cut Filter - 1.25\""
brand: "gso"
price: "€ 0.71"
currency: EUR
in_stock: false
url: https://www.desertcart.nl/products/26066759-gso-ir-blocking-ir-cut-filter-1-25
store_origin: NL
region: Netherlands
---

# Blocks IR light Sharp cut-off at 690 nm 1.25" threading GSO IR Blocking/IR Cut Filter - 1.25"

**Brand:** gso
**Price:** € 0.71
**Availability:** ❌ Out of Stock

## Summary

> 🌠 Capture the Cosmos Like Never Before!

## Quick Answers

- **What is this?** GSO IR Blocking/IR Cut Filter - 1.25" by gso
- **How much does it cost?** € 0.71 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/26066759-gso-ir-blocking-ir-cut-filter-1-25)

## Best For

- gso enthusiasts

## Why This Product

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

## Key Features

- • **Enhanced Clarity:** Say goodbye to star bloating and hello to sharper images of the Moon and planets.
- • **Stackable Design:** Combine with other filters for a customized viewing experience.
- • **Seamless Compatibility:** Easily threads onto any standard 1.25" camera or eyepiece.
- • **Optimal Light Management:** Blocks unwanted IR light while allowing crucial visible red wavelengths.
- • **Transform Your Astrophotography:** Elevate your celestial captures with precision!

## Overview

The GSO IR Blocking/IR Cut Filter is a high-performance optical filter designed for astrophotography enthusiasts. With a standard 1.25" threading, it effectively blocks infrared light to enhance image sharpness and clarity, particularly for lunar and planetary observations. Its sharp cut-off at 690 nm ensures that essential visible red light, including the hydrogen-alpha emission line, is preserved for stunning celestial imagery.

## Description

This 1.25" IR blocking filter, made by GSO of Taiwan, is recommended for use with CCD, video, and webcams to improve image sharpness and prevent unwanted "bloating" of star images in astrophotography.This filter blocks light with a wavelength longer than 690 nm and transmits visible wavelengths including the important 656nm H-alpha emission line. The IR blocking optical glass filter allows transmission of 95% of desirable visible light. The glass filter is mounted in a black-anodized cell with threads on both sides (M28.5x0.6 male on one side and female on the other), so it threads on any CCD camera, eyepiece, or adapter that accepts standard 1.25" filters. It can be stacked with other 1.25" filters.

## Features

- Threads to camera, eyepiece, or adapter with standard 1.25” threads, and can be stacked with other threaded 1.25” filters
- Optical filter blocks IR light from entering digital cameras, preventing star bloating and increasing sharpness of Moon and planets
- Sharp cut-off at 690 nm blocks IR light while passing visible red light, especially the important 656 nm hydrogen-alpha emission line

## Images

![GSO IR Blocking/IR Cut Filter - 1.25" - Image 1](https://m.media-amazon.com/images/I/51bNVf0dqsL.jpg)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-17*