20% Off

Explore Scientific 1.25" 7nm H-Alpha Nebula Filter

SKU: ES310145 MFR: 310145
$174.99
$219.99
Save: $45 (20%)
Earn VIP Reward Points

Key Features

  • Enhance object contrast with this Explore Scientific H-Alpha nebula filter!
  • Experience precise wavelength control for stunning deep-sky views at night.
  • Reduce light pollution effectively using this 1.25" telescope filter.
  • Threaded for compatibility, easily attach this filter to your telescope.
  • Enjoy high filter transmission, revealing faint details in nebulae clearly.
  • Crafted from durable material, this H-Alpha filter ensures years of use.
See More Product Details
Special Order?Estimated to Ship: 09/14/2025
Free Shipping

See Options

1

Protect your gear with Adorama Protect.* Learn more

1 Year

$16.99

2 Year

$29.99

3 Year

$39.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Explore Scientific H-Alpha Nebula Filter Specifications

  • Passband bandwidth

    7nm

  • Diameter

    1.25" (31.8mm)

  • UPC Code

    811803034808

About Explore Scientific H-Alpha Nebula Filter

If you're an astrophotographer battling the challenges of light pollution, the 1.25" 7nm H-Alpha Nebula Filter by Explore Scientific is your solution. This advanced filter is specifically designed to enhance the visibility of deep-sky objects, even in areas with significant artificial lighting.

Light pollution, caused by street lights and other human-made sources, can severely compromise the contrast and perception of celestial bodies. However, with the H-Alpha Nebula Filter, you can effectively filter out a substantial portion of this interfering light, making it easier to capture stunning astrophotographs.

This filter capitalizes on the properties of emission nebulae, celestial objects that emit light in specific colors, or emission lines. These emission lines are associated with certain chemical elements, in this case, the red glow of hydrogen. The H-Alpha Nebula Filter blocks all other colors, allowing only the emission lines of hydrogen to pass through. This means that almost all artificial light is blocked, including the disruptive light from mercury and sodium vapor lamps.

The result is a remarkable transformation in your astrophotography. Nebulae become visible in areas that previously appeared empty without a filter. Even under slightly brightened skies, many emission nebulae are brought to life with this filter, revealing their full extent in your astrophotographs.

The 1.25" 7nm H-Alpha Nebula Filter is a game-changer for urban astrophotographers, enabling you to achieve surprisingly high-quality image results despite the presence of light pollution. Each Explore Scientific nebula filter comes with an individual test report, assuring you of its superior quality. This filter is an essential tool for every astrophotographer seeking to capture the beauty of the cosmos amidst the glow of city lights.

Explore Scientific H-Alpha Nebula Filter 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: 7 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

Key Features

  • Enhance object contrast with this Explore Scientific H-Alpha nebula filter!
  • Experience precise wavelength control for stunning deep-sky views at night.
  • Reduce light pollution effectively using this 1.25" telescope filter.
  • Threaded for compatibility, easily attach this filter to your telescope.
  • Enjoy high filter transmission, revealing faint details in nebulae clearly.
  • Crafted from durable material, this H-Alpha filter ensures years of use.

What's in the box:

  • Explore Scientific 1.25" 7nm H-Alpha Nebula Filter
  • Plastic Filter Case
  • Explore Scientific 1 Year Limited Warranty (Lifetime Limited Warranty with Registration)