{"id":25233,"date":"2025-08-07T17:04:56","date_gmt":"2025-08-07T15:04:56","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=25233"},"modified":"2026-07-19T22:18:36","modified_gmt":"2026-07-19T20:18:36","slug":"omegon-pro-h-beta-filter-2-inch","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-pro-h-beta-filter-2-inch\/","title":{"rendered":"Omegon Pro H-Beta Filter 2 inch"},"content":{"rendered":"

Omegon Pro H-Beta Filter 2 inch: H-beta in 2 inch for wide-angle eyepieces<\/strong><\/h2>\n\n\n\n

The 2-inch version of the H-Beta filter, intended for wide-angle eyepieces and telescopes with a 2-inch light path.<\/p>\n\n\n\n

\"Omegon<\/figure>
\"Omegon<\/figure><\/figure>\n\n\n\n

One line, deliberately chosen<\/h4>\n\n\n\n

The filter exclusively lets light around 486 nanometers pass through, the H-beta emission line of hydrogen. Objects emitting this light become visible, while starlight, moonlight, and artificial lighting are almost completely filtered out.<\/p>\n\n\n\n

What you use him for<\/h4>\n\n\n\n

The classic targets are the California Nebula (NGC 1499), the Horsehead Nebula (IC 434), and Simeis 147: objects that are barely noticeable even under a dark sky without this filter. The larger aperture allows you to view these extended fields in a single image.<\/p>\n\n\n\n

Featured accessories<\/h3>\n\n\n\n

Intended for use with 2-inch wide-field eyepieces. A dark observing location and a large aperture are prerequisites to get something out of it.<\/p>\n\n\n\n

For whom yes and for whom no<\/h3>\n\n\n\n