{"id":94171,"date":"2026-01-13T20:29:07","date_gmt":"2026-01-13T19:29:07","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=94171"},"modified":"2026-10-13T10:52:49","modified_gmt":"2026-10-13T08:52:49","slug":"omegon-nightstar-binoculars-2040x100-doublet-with-interchangeable-eyepieces","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-nightstar-verrekijkers-2040x100-doublet-met-verwisselbare-oculairs\/","title":{"rendered":"Omegon Nightstar Binoculars 20+40\u00d7100 Doublet with Interchangeable Eyepieces"},"content":{"rendered":"

Omegon Nightstar 20+40x100 Doublet Binoculars with Interchangeable Eyepieces: 100 mm with two magnifications in the box<\/strong><\/h2>\n\n\n\n

This Nightstar 100 mm comes with two pairs of eyepieces: 20x for a wide view and 40x for detail. Both sets are 1.25 inches, so you can add any other magnification later. The 45-degree viewing angle and the 100 mm doublet lenses make it the most affordable giant binoculars with interchangeable eyepieces in our range.<\/p>\n\n\n\n

Practical details that you don't often see at this price: a retractable dew shield per tube, a finder scope mounting foot, and an integrated carrying handle. The scope comes in an aluminum case.<\/p>\n\n\n\n

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Two magnifications, two exit pupils<\/h4>\n\n\n\n

At 20x, the exit pupil is 5 mm and the field of view is 2.5 degrees: plenty for star clusters and the Milky Way. At 40x, that becomes 2.5 mm and 1.5 degrees: enough for the moon, double stars, and the core of globular clusters. If you switch sets, you refocus each eyepiece tube individually.<\/p>\n\n\n\n

The apparent field of view of the included eyepieces is 54 to 58 degrees. With 65-degree Omegon Flatfield eyepieces, the image becomes wider and the edge sharper.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Optics<\/h4>\n\n\n\n

Doublet objectives with BaK-4 prisms and fully multi-coated optics. A slight color fringe at the edge of the moon is normal for a 100 mm achromat. Diopter adjustment 4, eye relief 18 mm.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Construction and use<\/h4>\n\n\n\n

Rubber armor, 45-degree viewing angle, splash-proof but not waterproof. The tripod mount is located directly on the viewer. A red dot finder on the finder shoe makes targeting at 40x much easier.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Mount<\/h4>\n\n\n\n

A binocular of this class belongs on a fork mount. The Omegon Pro Neptune with center column and carbon tripod is the complete base; the simpler Omegon fork mount for large binoculars also supports it.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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