{"id":7415,"date":"2025-02-12T21:06:05","date_gmt":"2025-02-12T20:06:05","guid":{"rendered":"https:\/\/telescoop.rabdevelopment.nl\/?post_type=product&p=7415"},"modified":"2026-08-25T15:09:13","modified_gmt":"2026-08-25T13:09:13","slug":"vespera-dual-band-filter","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/vespera-dual-band-filter\/","title":{"rendered":"Vaonis Vespera Dual Band Filter"},"content":{"rendered":"

Vaonis Vespera Dual Band Filter: nebulae in full contrast<\/strong><\/h2>\n\n\n\n

The Vaonis dual band filter is the specialized nebula filter for the Vespera. The narrowband interference filter transmits exclusively the two main emission lines of nebulae: hydrogen-alpha (H-alpha) and oxygen-III (O-III). All other light, including light pollution and moonlight, is blocked.<\/p>\n\n\n\n

Emission nebulae, planetary nebulae, and supernova remnants therefore stand out against a virtually black background, even from the city and even with a bright moon.<\/p>\n\n\n\n

\"Vaonis<\/figure>
\"Vaonis<\/figure><\/figure>\n\n\n\n
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\"Vaonis<\/figure>\n<\/div>\n\n\n\n
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Automatically recognized<\/h4>\n\n\n\n

The integrated chip registers the filter with the station as soon as you snap it on. The Singularity app automatically adjusts the recording and image processing to match it.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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\"Vaonis<\/figure>\n<\/div>\n\n\n\n
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For which objects<\/h4>\n\n\n\n

Think of the Orion Nebula, the North America Nebula, the Veil Nebula, and the Dumbbell Nebula: objects that emit in H-alpha and O-III. Galaxies and star clusters emit broadband; for those, the CLS filter or no filter is the better choice.<\/p>\n<\/div>\n<\/div>\n\n\n\n

Included<\/h3>\n\n\n\n