Baader O-III Filter 10nm 1.25” – Visual
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Vai al moduloBaader O-III Filter 10nm 1.25” – Maximum Contrast for Planetary and Emission Nebulae
The Baader O-III 10nm filter 1.25” (31.8mm) is a narrowband filter for visual observation that precisely isolates the two OIII emission lines at 496nm and 501nm with a 10nm passband. Maximum contrast for planetary nebulae, emission nebulae and supernova remnants, even under moderately light-polluted skies.
Particularly effective on Veil Nebula, M57 (Ring), M27 (Dumbbell), M8 (Lagoon), M17 (Omega) and M16 (Eagle). Anti-reflection and anti-moisture coatings for consistent performance.
Technical Specifications
| Filter type | O-III narrowband (visual) |
| Isolated lines | O-III 496nm and 501nm |
| Bandwidth (FWHM) | 10nm |
| Format | 1.25” (31.8mm) |
| Coating | Anti-reflection and anti-moisture |
| Usage | Visual observation of planetary and emission nebulae |
| Compatibility | Any telescope with 1.25” focuser |
| Manufacturer | Baader Planetarium (Germany) |