Dual-Band 7nm Nebula Filter for Astrophotography SVBONY 2 inches
Dual-Band 7nm Nebula Filter for Astrophotography SVBONY 2 inches
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Prix habituel
€125,99 EUR
Prix habituel
Prix promotionnel
€125,99 EUR
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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.