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Dual-Band 7nm Nebula Filter for Astrophotography SVBONY 2 inches

Dual-Band 7nm Nebula Filter for Astrophotography SVBONY 2 inches

SKU:W9191A

Saadaval 3-5 nädala jooksul

Prix habituel €125,99 EUR
Prix habituel Prix promotionnel €125,99 EUR
En promotion Épuisé
Taxes incluses. Frais d'expédition calculés à l'étape de paiement.

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This narrowband filter specifically designed for astrophotography allows capturing color images even in strongly light-polluted city environments. It is particularly useful for photographing emission nebulae, planetary nebulae, and supernova remnants.

Specifications

  • Size: 1.25 inches (31.75 mm)
  • Substrate thickness: 1.85 mm
  • Clear aperture: 26 mm
  • Wavelength range: 300-1100 nm
  • FWHM (OIII and HA): 7 nm
  • Blocking: >OD5
  • Maximum transmission: 500.7 nm @ T>90%, 656.3 nm @ T>94%
  • Surface quality: 60/40
  • Surface parallelism: 1/4λ

This filter is designed to eliminate interference caused by artificial light from sodium or mercury lamp posts, as well as other unwanted disturbances like skyglow.

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