---
product_id: 586754177
title: "OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)"
brand: "optolong"
price: "14031646₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/586754177-optolong-new-optolong-filter-2-inch-l-quad-enhance-filer
store_origin: VN
region: Vietnam
---

# Quad-bandpass light pollution suppression Near IR cut-off to 1000nm reduces noise 90%+ nebula emission line transmittance OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)

**Brand:** optolong
**Price:** 14031646₫
**Availability:** ✅ In Stock

## Summary

> 🌠 Elevate your astrophotography game — capture the cosmos like never before!

## Quick Answers

- **What is this?** OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) by optolong
- **How much does it cost?** 14031646₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/586754177-optolong-new-optolong-filter-2-inch-l-quad-enhance-filer)

## Best For

- optolong enthusiasts

## Why This Product

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

## Key Features

- • **Noise? Not Tonight:** Near-infrared cut-off up to 1000nm dramatically reduces IR noise, boosting signal-to-noise ratio.
- • **Vibrant Nebula Colors:** Over 90% transmittance of key nebula emission lines (H-Beta, OIII, H-Alpha, SII) for stunning color saturation.
- • **Celestial Clarity Unleashed:** Suppresses artificial & natural light pollution for sharper, more vivid night sky shots.
- • **Starburst Suppression Mastery:** Minimizes starbursts to reveal crisp, detailed celestial bodies with enhanced contrast.
- • **Universal Nightscape Compatibility:** Effective from Bortle 1 to 7 skies, making it the go-to filter for urban to rural astrophotographers.

## Overview

The OPTOLONG 2-inch L-Quad Enhance Filter (L-QEF) is a professional-grade quad bandpass filter designed to suppress light pollution from artificial and natural sources. It delivers over 90% transmittance of key nebula emission lines, cuts near-infrared noise up to 1000nm, and reduces starbursts, resulting in higher contrast, richer colors, and clearer celestial details. Ideal for astrophotographers shooting under Bortle scale 1 to 7 conditions.

## Description

OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)

## Features

- L-Quad Enhance Filter is a quad bandpass light pollution suppression filter for colour cameras. It effectively suppresses the transmission of light pollution wavelengths, especially light pollution generated by artificial lighting (including mercury and sodium lamps), as well as the effects of natural skylight-induced effects on the shot, thus effectively enhancing the contrast and details of the celestial bodies, and making the objects more distinct and stereoscopic. This filter provides better
- ▲Better suppression of starbursts; Higher contrast and more details of the celestial bodies; Better colour saturation; Better signal-to-noise ratio (SNR); ▲Near IR cut-off to 1000nm, reducing the effects of IR noise; ▲L-QEF has more than 90% transmittance of the nebula emission lines at H-Beta/OIII/H-Alpha/SII, with cut-off depth from OD2 to OD4, thus providing a significant increase in resistance to light pollution. L-QEF is good for night sky from Bortel 1 to Bortel 7 levels; (Bortel 8, Bortel
- Photo Filter Thread Size: 48.0 meters
- Material: Aluminium
- Coating Description: Multi Coating
- Water Resistance Level: not_water_resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 7.6 x 7.4 x 2.2 centimetres |
| Package Weight | 0.04 Kilograms |
| Product Dimensions L x W x H | 5.1 x 5.1 x 0.1 centimetres |
| Brand | OPTOLONG |
| Part number | 11105 |
| Water Resistance Level | Not Water Resistant |
| Photo Filter Effect Type | light_pollution_suppression |
| Photo Filter Thread Size | 48 Metres |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** OPTOLONG
- **Material:** Aluminium
- **Photo filter thread size:** 48 Metres
- **Coating description:** Multi Coating
- **Photo filter effect type:** light_pollution_suppression
- **Water resistance level:** Not Water Resistant
- **Product dimensions:** 5.1L x 5.1W centimetres
- **Photo Filter Size:** 48 Millimeters

## Images

![OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) - Image 1](https://m.media-amazon.com/images/I/41QntQ1mM1L.jpg)
![OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) - Image 2](https://m.media-amazon.com/images/I/412dwRR7b-L.jpg)
![OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) - Image 3](https://m.media-amazon.com/images/I/416E1MxWVIL.jpg)
![OPTOLONG New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) - Image 4](https://m.media-amazon.com/images/I/51PncIZUvEL.jpg)

## Frequently Bought Together

- New Optolong Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)
- SVBONY SV226 Telescope Filter Drawer, Photographic Filters Drawer with M42-M48 Adapter, Double Magnetic Filter Holder for 1.25 and 2 Inches Filter Mounted, for Deep Sky Photography
- Optolong L-Ultimate 2” Dual Bandpass Light Pollution Reduction Imaging Filter

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**Shop now:** [https://www.desertcart.vn/products/586754177-optolong-new-optolong-filter-2-inch-l-quad-enhance-filer](https://www.desertcart.vn/products/586754177-optolong-new-optolong-filter-2-inch-l-quad-enhance-filer)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-08*