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Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
ZWO Narrowband H-alpha Filter - 7nm

ZWO Narrowband H-alpha Filter - 7nm

by ZWO
SKU ZWO-Ha7nm1.25
$0
$129.00 USD - $249.00 USD
$129.00
$129.00 USD - $249.00 USD
$129.00 USD
  • 7nm Bandpass for Precision Imaging
  • Enhanced Nebula Imaging
  • Light Pollution Suppression
  • High Transmission Rate
  • Superior Optics
  • Standard Sizes for Versatility
Availability:
1 in stock
Availability:
Backordered
Contact us to know when we will receive our next ones!
Check the other options, 1 is in stock!
Availability:
Backordered
Contact us to know when we will receive our next ones!
Check the other options, 1 is in stock!

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More information

  • ZWO Narrowband Ha Filter - 7nm - Overview

    Astrophotography Product

    The ZWO Narrowband H-alpha Filter - 7nm is a powerful astrophotography tool that isolates the hydrogen-alpha (656.3 nm) emission line, revealing the glowing hydrogen gas that defines many celestial objects. Whether imaging emission nebulae or other hydrogen-rich targets, this filter ensures unparalleled contrast and detail. It is ideal for deep-sky imaging in both light-polluted and dark-sky environments.

    7nm Bandpass for Precision Imaging

    The 7nm bandpass isolates the H-alpha emission line with high accuracy, blocking other wavelengths to enhance contrast and highlight intricate details of celestial targets.

    Enhanced Nebula Imaging

    Perfect for capturing the rich hydrogen emissions found in deep-sky objects like the Orion Nebula, Horsehead Nebula, and Eagle Nebula.

    Light Pollution Suppression

    Reduces the impact of artificial light sources and natural skyglow, making it an excellent choice for astrophotography in urban settings.

    High Transmission Rate

    Offers a high transmission rate at the H-alpha wavelength, ensuring optimal performance even during long exposure sessions.

    Superior Optics

    Multi-layer coatings provide durability and minimize reflections and halos, delivering clear and precise images.

    Standard Sizes for Versatility

    Available in multiple sizes (1.25", 2", and others), the filter fits seamlessly into ZWO cameras, filter wheels, and other astrophotography equipment, ensuring flexibility in your imaging setup.

    Why Choose This Product

    Applications

    • Narrowband Imaging: Combine the H-alpha filter with OIII and SII filters to create striking tri-color narrowband images, revealing the full depth and beauty of emission nebulae.
    • Urban Astrophotography: Overcome light pollution and achieve high-quality results in city environments by isolating the H-alpha wavelength.
    • Lunar and Night Imaging: Continue imaging even under moonlit skies with minimal interference, allowing for consistent astrophotography opportunities.
    • Detailed Nebula Structures: Bring out the intricate textures, filaments, and gas clouds in hydrogen-rich regions of the cosmos.

    Why Choose the ZWO Narrowband H-alpha Filter - 7nm ?

    The ZWO Narrowband H-alpha Filter - 7nm is essential for astrophotographers who want to capture the most detailed and vivid images of hydrogen-rich celestial objects. Its precise bandpass, superior optics, and light pollution suppression make it a versatile and reliable filter for all astrophotography levels.
    Elevate your astrophotography game with the ZWO Narrowband H-alpha Filter - 7nm. Explore the cosmos in stunning detail, capturing the essence of emission nebulae and other deep-sky wonders.
    Add the ZWO Narrowband H-alpha Filter - 7nm to your astrophotography toolkit and experience a new level of imaging precision and clarity.

    Why Choose This Product
    In the Box

    Technical Data

    • FWHM：7±0.5nm
    • Glass Thickness 2.0+/-0.03 mm (31mm/36mm)
    • Fine-optically polished to ensure accurate 1/4 wavefront over the both surfaces
    • About 90% transmission at H-alpha line 656nm (H-Alpha filter )
    • About 90% transmission at SII line 672nm (SII filter )
    • About 90% transmission at major OIII line 500nm (OIII filter )
    • Infrared wavelength 700-1100nm cut-off
    • <0.1% transmission of off-band, OD3(Optical Density)

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