ZWO narrowband 31 mm (unmounted) NB7nm set of three filters (HSO, SKU: ZWO NB7nmD31)
zoom_out_map
chevron_left chevron_right

Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.

ZWO narrowband 31 mm (unmounted) NB7nm set of three filters (HSO, SKU: ZWO NB7nmD31)

Capture stunning celestial images with the ZWO NB7nmD31 set of three unmounted 31mm narrowband filters, crafted by the renowned astrophotography brand, ZWO. Designed for the breathtaking HSO color palette, these 7nm filters excel at minimizing artificial light interference while maximizing signal clarity. Perfect for both amateur and professional astrophotographers, the set includes dedicated filters for Hydrogen Alpha, Sulfur-II, and Oxygen-III. Experience superior image resolution and high contrast, elevating your astrophotography to new heights with this precision-engineered accessory. Enhance your cosmic adventures with the ZWO narrowband 31mm filter set.
2112.54 lei
Tax included

1717.51 lei net price (non-EU countries)

Anatolii Livashevskyi
Product Manager
Українська / Polski
+48721808900
+48721808900
Telegram +48721808900
[email protected]

Description

ZWO 31 mm Narrowband HSO Filter Set (Unmounted) – Enhanced 7 nm Precision

Discover the latest innovation from ZWO, a leader in professional astrophotography equipment. Introducing the upgraded narrowband filter set, meticulously designed for capturing breathtaking images in the HSO color palette.

Product Highlights:

  • High Transmission Efficiency: Offers approximately 90% maximum transmission, ensuring vibrant image quality.
  • Ultra-Narrow Bandwidth: Each filter has a precise half-bandwidth of 7 nm, perfect for isolating specific wavelengths.
  • Advanced Coating Technology: Full multilayer coating eliminates common halo effects, enhancing clarity and detail.

These filters are expertly crafted on a robust 2 mm glass substrate, making them ideal for enhancing celestial object contrast against the night sky. Unlike conventional filters, ZWO's narrowband set excels in light-polluted environments, allowing for vivid captures of nebulae, including emission nebulae, planetary nebulae, and supernova remnants.

Usage Note: For optimal results, ensure the correct orientation of the Hα and SII filters. The side with the purple coating should face the camera.

Technical Specifications:

  • Filter Type: Rimless narrowband filter
  • Filter Diameter: 31 mm
  • Filter Thickness: 2.0 ± 0.03 mm
  • Half-Bandwidth (FWHM): 7 nm
  • Maximum Transmission for 656 nm (Hα) Line: Approximately 90%
  • Maximum Transmission for 672 nm (SII) Line: Approximately 90%
  • Maximum Transmission for 500 nm (OIII) Line: Approximately 90%
  • Infrared (IR) Blocking Range: 700 - 1100 nm
  • Out-of-Band Transmission: Less than 0.1%
  • Equivalent Optical Density for Blocked Range: OD3
  • Coating Type: Full multilayer coating (FMC)

Kit Components:

  • ZWO Hα 7 nm Filter
  • ZWO SII 7 nm Filter
  • ZWO OIII 7 nm Filter
  • Protective Plastic Boxes for Each Filter

Astrophotographers can enhance their cosmic imagery with the ZWO HSO 31 mm Narrowband Filters, even under challenging lighting conditions. Embrace the advanced capabilities of these filters to capture the universe's beauty with unmatched precision and depth.

Data sheet

JL93BWXN7N

Official permits of the Ministry of Development and Technology

Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.