---
product_id: 2685901
title: "Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black"
brand: "celestron"
price: "678 Lei"
currency: RON
in_stock: true
reviews_count: 9
category: "Celestron"
url: https://www.desertcart.ro/products/2685901-celestron-94123-1-25-inch-uhc-lpr-filter-with-multi
store_origin: RO
region: Romania
---

# 97%+ light transmission 1.25-inch standard telescope fit Ionbeam hardened multi-layer coatings Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black

**Brand:** celestron
**Price:** 678 Lei
**Availability:** ✅ In Stock

## Summary

> 🌠 See the stars like your friends can’t — elevate your night sky game!

## Quick Answers

- **What is this?** Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black by celestron
- **How much does it cost?** 678 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/2685901-celestron-94123-1-25-inch-uhc-lpr-filter-with-multi)

## Best For

- celestron enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-High Contrast Views:** Experience nebulae pop with sky backgrounds darker than ever.
- • **Optimized for All Telescope Sizes:** From 4" to 11" scopes, enjoy maximum brightness and rich star fields.
- • **Selective Light Pollution Reduction:** Blocks mercury vapor & sodium vapor light pollution for pristine celestial clarity.
- • **Advanced Multi-Layer Dielectric Coatings:** Scratch-resistant, plasma-assisted coatings ensure durability and crystal-clear optics.
- • **Natural Color Retention with Enhanced Contrast:** 60nm passband balances vivid nebula detail without unnatural hues.

## Overview

The Celestron 94123 1.25-inch UHC/LPR Filter uses cutting-edge multi-layer dielectric coatings to block common urban light pollution wavelengths while maintaining over 97% light transmission. Designed for 1.25" telescope eyepieces, it enhances nebula contrast and star field richness under both light-polluted and dark skies. Durable and scratch-resistant, this filter is a must-have for serious amateur astronomers seeking sharper, brighter celestial views.

## Description

Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). The new ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass, with total blockage of prominent light pollution lines. The perfect filter for viewing nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites. In addition to it's optimum spectral and optical characteristics, the UHC/LPR filter offers important features that set it apart and result in the highest quality celestial views: The multi-layer dielectric coatings are plasma assisted and Ionbeam hardened using the latest technology for durability and resistance to scratching. Improved transmission translates to maximum image brightness and contrast. Users of smaller, 4"-11" telescopes will especially appreciate the high efficiency, and larger scope users will love the rich star fields and detailed subtle nebular shadings that are left intact. The high transmission, sharp cutoffs, and more moderate 60nm passband of the UHC/LPR filter retains a more natural view, yet significantly boosts overall contrast. Imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha passband (656nm).

Review: Celestron 2-inch O-III filter - I can't compare this filter to its counterparts from Lumicon, Orion, Thousand Oaks, or others, since I don't own and haven't tried any of them. Physically, the Celestron looks identical those offered by Baader Planetarium--I've never seen any other make with those square serrations along the perimeter. We still haven't been out to our dark site with the O-III yet, but I did give it a quick try a few weeks ago at our local community college, where we usually just do planetary viewing due to the excessive light pollution. I inserted the O-III in our filter slide and pointed it toward M57, not expecting very much. After all, the Ring is supposedly better suited to a UHC filter than the O-III. The results were absolutely stunning--the nebula appeared as a distinct greenish ring against an inky black background. I then changed to a longer FL EP and directed our CPC 925 to slew over to M27. Usually we can't see the Dumbbell from the college and that night was no exception. Not knowing whether it was even in the FOV, I slid in the O-III filter and the nebula just popped right out, nearly dead center, and with as clear definition as we usually get from the dark site (Bortle's green) with no filter at all. We will definitely be picking up the UHC and h-beta filters to join this one. At more than twice the price, I can't imagine how the Lumicon O-III could be twice as good as this one, so I'm very satisfied with the Celestron filter, both in performance and value. UPDATE 7 Sep 2012: Well, it's nearly four years to the day since I bought this O-III and the other Celestron filters, and we've used them at multiple locations under suburban skies, as well as at our dark site. About the only thing I can add is that performance has been fully satisfying in every respect and each filter still looks as good as the day I received them, both optically and physically. I must admit, however, that they live a very pampered life--we use them exclusively in the power/filter slide on our EarthWin binoviewer, and I purchased several additional pairs of carriers so that I never have to swap any filter in & out of a carrier frame. Once mounted in its carrier, each unit only leaves its plastic case long enough to slide it into the binoviewer assembly. (The same carrier also fits newer Denks since they and EarthWin are co-owners on the patent for the power/filter slide system.) I was very surprised to see the 1-star review posted today by Allen Andrews, since my experience with this filter has been very positive. In fact, I dug out the original packaging for my O-III filter because I didn't remember it arriving in the kind of puzzle box that Allen describes. Sure enough, mine came in a clear plastic hinged storage box similar this one, but smaller: http://www.desertcart.com/BCW-Trading-Capacity-Hinged-Holder/dp/B005KDHJBU/ref=pd_sim_sbs_sg_8. It was lined with a thin sheet of foam and the small plastic box was packed inside a slightly larger cardboard box. Fit and finish on the filter appeared flawless right out of the box and I screwed it onto a few different brand EPs and our 2" Zhumell Barlow just to make sure there were no problems with the threads before mounting it in the power/filter slide carrier frame. Allen's review makes me wonder if maybe Celestron is now using a new supplier for this filter and the quality isn't what it used to be. I would recommend that anyone considering this product consult reviews on the astro-vendor websites like Telescopes.com or OpticsPlanet.com, and maybe check the Cloudy Nights forums for any relevant discussion threads. I must also add that my own experience with Celestron products in general has been the exact opposite of Allen's. I have a Celestron CPC 925 GPS SCT purchased in 2007. It is one of the Chinese-made models, but it has been an exceptional scope in every regard: optically, mechanically, and electronically. I can't say the same for my three Meade scopes--two Newtonian reflectors and an ETX-125 Mak-Cas, all of which came out of the box with various defects ranging from clouded mirrors to faulty drive mechanisms and missing parts. A tripod foot cracked and broke on one of our very first outings with the ETX, even though we always set up on vibration isolation pads. However, I agree with Allen that you can't go wrong with any filter made by Tele Vue or Thousand Oaks, and I'd also add Lumicon to that list. For the money, though, I'm still very pleased with our Celestron nebula filters and OWL Astronomy color filters.
Review: Very good performance and price - I've used many different types of filters by Orion, Lumicon, & Meade. This Celestron O-III filter performs right up there with the premium brands. I've been able to use it in skies ranging from magnitude 3 urban white zone to a magnitude 7 blue zone. The visual contrast can be quite noticeable depending on what type of nebula you are viewing and the seeing conditions. I primarily use it with an EdgeHD 11" OTA which gives great results at 100x to 150x. I've also used it with a 120mm APO refractor which is smaller than recommended for this aggressive of a filter. Yet is still works well and give nice wide field views on the brighter nebulae. I wouldn't use with with smaller planetary nebulae or HII type emission nebulae. the threading is particularly nice it easily fits onto the 2" eyepieces much better than Orion filters. I've dropped it on payments a couple times in the dark and no scratches or dings to the glass. Very well constructed.

## Features

- Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00080L42K |
| Best Sellers Rank | #11 in Telescope Filters |
| Customer Reviews | 4.3 4.3 out of 5 stars (318) |
| Date First Available | June 17, 2003 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.06 ounces |
| Item model number | 94123-CGL |
| Manufacturer | Celestron |
| Product Dimensions | 2.5 x 0.5 x 2.5 inches |

## Product Details

- **Brand:** Celestron
- **Coating Description:** Multi Coating
- **Global Trade Identification Number:** 00050234941235
- **Material:** Optical Glass
- **Photo Filter Effect Type:** Enhancing
- **Photo Filter Size:** 31.75 Millimeters
- **Photo Filter Thread Size:** 31.75 Millimeters
- **Product Dimensions:** 1.25"L x 1.25"W
- **UPC:** 050234941235
- **Water Resistance Level:** Not Water Resistant

## Images

![Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black - Image 1](https://m.media-amazon.com/images/I/51IE+hYbu8L.jpg)
![Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black - Image 2](https://m.media-amazon.com/images/I/51tmgnkcc9L.jpg)
![Celestron 94123 1.25-inch UHC/LPR Filter with Multi-Layer Dielectric Coatings - Optimises Spectral and Optical Characteristics for Improved Celestial Viewing, Black - Image 3](https://m.media-amazon.com/images/I/61B6lEgLU1L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Celestron 2-inch O-III filter
*by H***N on September 8, 2008*

I can't compare this filter to its counterparts from Lumicon, Orion, Thousand Oaks, or others, since I don't own and haven't tried any of them. Physically, the Celestron looks identical those offered by Baader Planetarium--I've never seen any other make with those square serrations along the perimeter. We still haven't been out to our dark site with the O-III yet, but I did give it a quick try a few weeks ago at our local community college, where we usually just do planetary viewing due to the excessive light pollution. I inserted the O-III in our filter slide and pointed it toward M57, not expecting very much. After all, the Ring is supposedly better suited to a UHC filter than the O-III. The results were absolutely stunning--the nebula appeared as a distinct greenish ring against an inky black background. I then changed to a longer FL EP and directed our CPC 925 to slew over to M27. Usually we can't see the Dumbbell from the college and that night was no exception. Not knowing whether it was even in the FOV, I slid in the O-III filter and the nebula just popped right out, nearly dead center, and with as clear definition as we usually get from the dark site (Bortle's green) with no filter at all. We will definitely be picking up the UHC and h-beta filters to join this one. At more than twice the price, I can't imagine how the Lumicon O-III could be twice as good as this one, so I'm very satisfied with the Celestron filter, both in performance and value. UPDATE 7 Sep 2012: Well, it's nearly four years to the day since I bought this O-III and the other Celestron filters, and we've used them at multiple locations under suburban skies, as well as at our dark site. About the only thing I can add is that performance has been fully satisfying in every respect and each filter still looks as good as the day I received them, both optically and physically. I must admit, however, that they live a very pampered life--we use them exclusively in the power/filter slide on our EarthWin binoviewer, and I purchased several additional pairs of carriers so that I never have to swap any filter in & out of a carrier frame. Once mounted in its carrier, each unit only leaves its plastic case long enough to slide it into the binoviewer assembly. (The same carrier also fits newer Denks since they and EarthWin are co-owners on the patent for the power/filter slide system.) I was very surprised to see the 1-star review posted today by Allen Andrews, since my experience with this filter has been very positive. In fact, I dug out the original packaging for my O-III filter because I didn't remember it arriving in the kind of puzzle box that Allen describes. Sure enough, mine came in a clear plastic hinged storage box similar this one, but smaller: http://www.amazon.com/BCW-Trading-Capacity-Hinged-Holder/dp/B005KDHJBU/ref=pd_sim_sbs_sg_8. It was lined with a thin sheet of foam and the small plastic box was packed inside a slightly larger cardboard box. Fit and finish on the filter appeared flawless right out of the box and I screwed it onto a few different brand EPs and our 2" Zhumell Barlow just to make sure there were no problems with the threads before mounting it in the power/filter slide carrier frame. Allen's review makes me wonder if maybe Celestron is now using a new supplier for this filter and the quality isn't what it used to be. I would recommend that anyone considering this product consult reviews on the astro-vendor websites like Telescopes.com or OpticsPlanet.com, and maybe check the Cloudy Nights forums for any relevant discussion threads. I must also add that my own experience with Celestron products in general has been the exact opposite of Allen's. I have a Celestron CPC 925 GPS SCT purchased in 2007. It is one of the Chinese-made models, but it has been an exceptional scope in every regard: optically, mechanically, and electronically. I can't say the same for my three Meade scopes--two Newtonian reflectors and an ETX-125 Mak-Cas, all of which came out of the box with various defects ranging from clouded mirrors to faulty drive mechanisms and missing parts. A tripod foot cracked and broke on one of our very first outings with the ETX, even though we always set up on vibration isolation pads. However, I agree with Allen that you can't go wrong with any filter made by Tele Vue or Thousand Oaks, and I'd also add Lumicon to that list. For the money, though, I'm still very pleased with our Celestron nebula filters and OWL Astronomy color filters.

### ⭐⭐⭐⭐⭐ Very good performance and price
*by J***N on April 19, 2013*

I've used many different types of filters by Orion, Lumicon, & Meade. This Celestron O-III filter performs right up there with the premium brands. I've been able to use it in skies ranging from magnitude 3 urban white zone to a magnitude 7 blue zone. The visual contrast can be quite noticeable depending on what type of nebula you are viewing and the seeing conditions. I primarily use it with an EdgeHD 11" OTA which gives great results at 100x to 150x. I've also used it with a 120mm APO refractor which is smaller than recommended for this aggressive of a filter. Yet is still works well and give nice wide field views on the brighter nebulae. I wouldn't use with with smaller planetary nebulae or HII type emission nebulae. the threading is particularly nice it easily fits onto the 2" eyepieces much better than Orion filters. I've dropped it on payments a couple times in the dark and no scratches or dings to the glass. Very well constructed.

### ⭐⭐⭐⭐ Good bargain filter
*by S***D on July 15, 2017*

This (and most other celestron band filters) are actually rebranded Baader Planetarium filters. You can compare pictures of these to ones from Baader's website and see that they're exactly the same, not to mention that the back of the plastic casing on these literally says "Baader Planetarium." As for how these work, they do a decent job of filtering out light pollution (I live in a horribly light polluted area outside a major city), but they can't work miracles and they add a blue tint to everything you're viewing. Also note that like it says in the description, these are best for viewing nebulae and unfortunately will dim out any galaxies you're viewing, but these weren't designed for galaxies. As far as I can tell these are flawless and don't appear to be factory rejects, seconds, or QC rejects from Baader, so I suspect it's simply a bulk distribution deal between Baader and Celestron. Overall these are a real bargain for the price and work well for those of us who live in cities and don't have the time to travel to beautiful dark skies.

## Frequently Bought Together

- Celestron 94123 1.25-Inch UHC/LPR Filter (Black)
- Celestron 14 Piece Telescope Accessory Kit - Plossl Eyepieces, Barlow Lens, Colored Filters, Moon Filter, and Sturdy Carry Case
- Celestron 3X - 1.25” – X-Cel LX Barlow Lens

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-13*