ZWO narrowband 7 nm HSO fiter set (aka SHO, SKU: ZWO NB7nm1.25)

ZWO Narrowband 7 nm HSO Filter Set (Hydrogen, Sulfur, Oxygen) - SKU: ZWO NB7nm1.25

Enhance your astrophotography with the ZWO Narrowband 7 nm HSO Filter Set, specifically designed for capturing stunning images of celestial objects. This set includes three distinct filters that significantly improve the contrast between celestial objects and the night sky, ideal for observing and photographing nebulae, even in light-polluted areas.

Filter Set Includes:

• Hydrogen Filter (H-alpha band): Enhances the capture of hydrogen emissions.
• Oxygen Filter (O-III): For observing and capturing oxygen emissions.
• Sulfur Filter (S-II): Allows you to capture sulfur emissions.

These filters enable you to create the renowned Hubble palette, also known as the SHO palette, by assigning sulfur to the red channel, hydrogen to the green channel, and oxygen to the blue channel. This method highlights the intricate details of emission nebulae, planetary nebulae, and supernova remnants.

Key Features:

• FWHM: 7 nm +/- 0.5 nm for precise filtering.
• Glass Thickness: 2 mm +/- 0.03 mm ensures durability and quality.
• Wavefront Accuracy: 1/4 λ for superior image clarity.
• High Transmission Rate: Approximately 90% for key spectral lines:
  • 656 nm (hydrogen filter)
  • 672 nm (sulfur filter)
  • 500 nm (oxygen filter)
• Low Transmission Beyond Pass Band: <0.1%, minimizing unwanted light.
• Infrared Cutoff: Effective in the range of 700 - 1100 nm to prevent IR contamination.
• MC Coatings: To reduce reflections and enhance performance.
• Filter Holder Length: 5.5 mm + 3.5 mm thread for secure mounting.
• Thread Size: M28.5x0.6 for compatibility with a variety of equipment.
• Filter Size: 1.25" / 31.7 mm, suitable for most standard telescopes.

Transform your astrophotography with this essential filter set, perfect for capturing breathtaking astronomical images with enhanced detail and contrast.