---
product_id: 585187947
title: "OPTOLONG New Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF)"
brand: "optolong"
price: "67668 som"
currency: KGS
in_stock: true
url: https://www.desertcart.kg/products/585187947-optolong-new-filter-2-inch-l-quad-enhance-filer-professional
store_origin: KG
region: Kyrgyzstan
---

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

**Brand:** optolong
**Price:** 67668 som
**Availability:** ✅ In Stock

## Summary

> 🌠 Capture the cosmos like a pro—no light pollution allowed!

## Quick Answers

- **What is this?** OPTOLONG New Filter 2-inch L-Quad Enhance Filer Professional L-Quad Enhance Filter (L-QEF) by optolong
- **How much does it cost?** 67668 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/585187947-optolong-new-filter-2-inch-l-quad-enhance-filer-professional)

## 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? What Noise?:** Near-infrared cut-off up to 1000nm slashes IR noise, delivering cleaner images.
- • **Vibrant Nebula Colors:** Over 90% transmittance of key nebula emission lines for stunning color saturation.
- • **Versatile for Any Night:** Effective from Bortle 1 to 7 skies, making it your go-to for urban or rural astrophotography.
- • **Boost Your Night Sky Contrast:** Enhances starburst suppression and reveals intricate details with higher contrast.
- • **Cut Through the Light Pollution:** Quad-bandpass filter blocks mercury & sodium lamp glare for crystal-clear celestial shots.

## Overview

The OPTOLONG 2-inch L-Quad Enhance Filter (L-QEF) is a professional-grade quad-bandpass filter designed to suppress artificial light pollution and natural skylight effects. It delivers over 90% transmittance of nebula emission lines (H-Beta, OIII, H-Alpha, SII), reduces starbursts, enhances contrast and color saturation, and cuts near-infrared noise up to 1000nm. Ideal for astrophotographers shooting under Bortle scale 1 to 7 conditions, it significantly improves the clarity and detail of celestial images.

## Description

New 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

## Product Details

- **Brand:** OPTOLONG
- **Material:** Optical Glass
- **Photo filter thread size:** 48 Meters
- **Coating description:** Multi Coating
- **Photo filter effect type:** light_pollution_suppression

## Images

![OPTOLONG New 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)

## 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.kg/products/585187947-optolong-new-filter-2-inch-l-quad-enhance-filer-professional](https://www.desertcart.kg/products/585187947-optolong-new-filter-2-inch-l-quad-enhance-filer-professional)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-16*