Svbony SV220 7nm Dual Narrowband Filter for Hubble Palette Deep-Sky
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Key Features
Combines Ha, OIII and SII filters for Hubble‑palette deep‑sky imaging with color balance control.
7 nm bandwidth sharply isolates key emission lines to significantly reduce sky glow and light pollution.
Designed to darken sky background and boost nebula contrast even in city and moonlit conditions.
Works with one‑shot color cameras without complex setup—simplifies astrophotography workflow.
Flexible set supports simple dual‑filter shooting and advanced compositing for detailed results.
2inch
1.25inch
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| Model | SV220 | SV220 |
| Name | 7nm H-Alpha&OIII Duo-Band OSC Filter | 7nm H-Alpha&OIII Duo-Band OSC Filter |
| Size | 2-Inch | 1.25-Inch |
| Substrate Thickness | 1.80mm | 1.85mm |
| Clear Aperture | 44mm | 26mm |
| Wavelength Range | 300-1100nm | 300-1100nm |
| FWHM | OIII (7nm) & HA (7nm) | OIII (7nm) & HA (7nm) |
| Blocking | OD5 | >OD5 |
| Peak transmittance | 500.7nm@T>90%; 656.3nm@T>94% | 500.7nm@T>90%; 656.3nm@T>94% |
| Surface Quality | 60/40 | 60/40 |
| Surface parallelism | 1/4λ | 1/4λ |
| Thread | M48x0.75 | M28.5*0.6 |
| Single Thread | Yes | Yes |
| Net Weight | 12.5g / 0.44oz /0.027lb | 7g |
| Model | SV220 | SV220 |
| Name | 7nm SII&OIII Duo-Band OSC Filter | 7nm SII&OIII Duo-Band OSC Filter |
| Size | 1.25-Inch | 2-Inch |
| Substrate Thickness | 1.80mm | 1.85mm |
| Clear Aperture | 26mm | 44mm |
| Wavelength Range | 300-1000nm | 300-1000nm |
| FWHM | 7nm | 7nm |
| Blocking | ≥OD5 | ≥OD5 |
| Peak transmittance | ≥88% | ≥88% |
| Surface Quality | 60/40 | 60/40 |
| Surface Parallelism | 1/2λ | 1/2λ |
| Thread | M28.5x06 | M48x0.75 |
| Single Thread | Yes | Yes |
| Net Weight | 7g | 15-20g |
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