Filtre Nebuleuse Dual-Band 7nm pour Astrophotographie SVBONY 2 pouces
Filtre Nebuleuse Dual-Band 7nm pour Astrophotographie SVBONY 2 pouces
SKU: W9191A
Disponibile
Impossibile caricare la disponibilità di ritiro
- Expédition depuis la France
- Retour sous 90 jours
- Support client en Français
This narrowband filter specifically designed for astrophotography allows you to capture color images even in highly light-polluted city environments. It is particularly useful for photographing emission nebulae, planetary nebulae, and supernova remnants.
Features
- 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 transmittance: 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 streetlights, as well as other unwanted disturbances like skyglow.











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