SKU: 40456261702

Nebula Filter H-Alpha 2-inch 12nm

Sale price$179.09 Regular price$198.99
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Description

Nebula Filter H-Alpha 2-inch 12nmNebula Filter H Alpha 2 inch 12nm Features High quality Explore Scientific H Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial light More contrast and details for all urban astrophotographers Passband bandwidth: 12 nm H alpha filters can only be used for astrophotography Ideal for use near cities with a slightly brightened sky Also blocks almost all light from mercury and sodium vapor lamps Many of

Nebula Filter H-Alpha 2-inch 12nm

 

Features

  • High quality Explore Scientific H-Alpha filter
  • Lets only the emission lines of hydrogen "through"
  • Absorbs almost all of the artificial light
  • More contrast and details for all urban astrophotographers
  • Passband bandwidth: 12 nm
  • H-alpha filters can only be used for astrophotography
  • Ideal for use near cities with a slightly brightened sky
  • Also blocks almost all light from mercury and sodium vapor lamps
  • Many of the red glowing emission nebulae are only visible to their full extent on photos with these filters
  • In spite of the existing light pollution, this results in surprisingly good image results

 

In addition to the turbulence in the air, the brightening of the night sky is the greatest obstacle to observing faint objects beyond the solar system. Street lights and other artificial lighting mean that the sky in human settlements is no longer properly black. As a result, the contrast and thus the perception of the deep-sky objects also suffer. Depending on the type of celestial object, however, part of the interfering light can be filtered out, thus making it easier to photograph the objects.

The Explore Scientific H-Alpha filter uses the property of the so-called emission mist. These objects glow in certain colors, the so-called emission lines. The emission lines are linked to certain chemical elements - in this case the red glowing hydrogen. This filter blocks all other colors (and thus almost all artificial light) and only lets through the emission lines of the hydrogen. In particular, the disruptive light from mercury and sodium vapor lamps is effectively blocked. The effect is amazing: Suddenly fog becomes visible in the photos in places that appear completely empty without a filter.

The Explore Scientific H-alpha mist filter has been developed exclusively for astrophotography. Especially when the sky is slightly brightened, many emission nebulae only come to light when this filter is used and are shown in full extent on the astrophotos. The H-alpha nebula filters make astrophotography near cities possible and their use leads to surprisingly good image results despite the existing light pollution. A must for every urban astrophotographer.

The Explore Scientific mist filters are supplied with an individual test report - so you can be sure that you are receiving high-quality filters.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 40456261702

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4.1 ★★★★★
Based on 20 reviews
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M
Verified Purchase
Marcus Gladney
Alexandria, US
★★★★★ 5
Excellent stand
Size: Dual, Style: Glass Free Stand
I love the functionality of this stand! It is very durable and stable. It does not require any form of anchoring to hold monitors. I have two 27 inch monitors attached to my stand with no problems. The stand can be moved in various direction with little effort. Excellent stand if you are looking to enhance your office space.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 27, 2024
L
Verified Purchase
Linda
Port Orchard, US
★★★★★ 5
Great Stand
Size: Triple, Style: Glass Free Stand
I am very happy with my purchase. This stand was very easy to put together and it is also extremely sturdy. Does exactly what I need it to do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
T
Verified Purchase
T Bayron
Chelsea, US
★★★★★ 5
nice stand, quick easy setup
Size: Quad, Style: Glass Free Stand
nice stand, easy setup, I like that you mount the bracket to the monitor first and then hook it onto the stand. This makes for a quick and easy setup. You do have to wrench down on the screws to keep the monitors from moving. Also you may want to have 4 of the exact same monitors so they all are at same height. I have two that are the same and two others that are different so they dont all mount at same level. I plan on ordering monitors to match.
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Reviewed in the United States on November 24, 2025
C
Verified Purchase
Chris Williams
New York, US
★★★★★ 4
Hard to stand alone, bulky
Size: Triple, Style: Steel Free Stand
Did not fulfill my need
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Reviewed in the United States on March 26, 2026
T
Verified Purchase
Ted Pavlic
Alexandria, US
★★★★★ 5
Fantastic upgrade from my original stand. Base is a little bulky, but stand is versatile and sturdy.
Size: Single, Style: Free-Standing, Size: Single, Style: Free-Standing
Amazing value for this stand. I needed a stand with more degrees of freedom than the original one that came with my monitor, and this stand (which was inexpensive relative to the cost of the monitor) was a great purchase. The base of the stand is a little bulky/high, and the soft material on the bottom of it can rub off very easily if you let the stand catch the back edge of your desk. Otherwise though, the stand is extremely easy to install, and it provides far more degrees of freedom for rotation and translation than the original stand for my monitor. Now my monitor is sitting at a comfortable viewing angle closer to my desk tilted slightly upwards toward me. Just keep in mind that you have to tighten down the height and tilt adjustments (the things that would be affected by gravity). So, if you want to adjust those frequently, this stand might not be a great fit for you. That said, it does provide a hidden but easy-to-access spot to store the keys needed to loosen it up to make those adjustments. So, if you need to make those adjustments, you'll always have quick access to the necessary tools. Highly recommended for its price in particular.
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Reviewed in the United States on October 2, 2025

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