Omegon Nightstar 20+40x100 Doublet binoculars with interchangeable eyepieces (73880)

Omegon Nightstar – Explore the Night Sky with Both Eyes Open

If you enjoy observing the stars with both eyes, the Omegon Nightstar is designed to deliver an immersive astronomical experience. With a large 100 mm objective aperture, it captures substantial light and is ideal for detailed skywatching. The 45-degree angled viewing design ensures comfortable observation, allowing you to explore star clusters, nebulae, and the Milky Way with ease.

Key Advantages

• Multi-coated doublet lenses for sharp, high-contrast images

• Includes eyepiece pairs for 20x and 40x magnification

• Compatible with additional 1.25-inch astronomical eyepieces

• Individually focusable eyepieces with adjustable interpupillary distance

• 1/4-inch tripod connection for secure mounting

• Comfortable viewing with both eyes open to reduce eye strain

Bright, High-Contrast Optics

The fully multi-coated doublet lenses deliver crisp and detailed images. With a 100 mm aperture, the Nightstar gathers ample light, producing bright views even at dusk. This makes it suitable not only for astronomy but also for observing wildlife in low-light conditions.

Flexible Eyepiece Options

The binoculars include two pairs of eyepieces, offering 20x and 40x magnification. You can also use other standard 1.25-inch astronomical eyepieces to adjust magnification or expand the field of view.

Magnification is calculated as 560 divided by the eyepiece focal length in millimetres. For example, a 12 mm eyepiece provides approximately 46x magnification (560 ÷ 12 = 46.6). A practical upper limit is around 100x magnification.

Finder Scope Bracket

A built-in bracket allows you to attach a red dot finder or optical finder scope. This makes locating celestial objects faster and easier.

Extendable Dew Shield

The retractable dew shield helps protect the lenses from moisture and reduces stray light, improving contrast and visibility.

Portable and Practical Design

The Nightstar features a central carrying handle for convenient transport and tripod placement. It can be easily moved and stored in the included transport case.

Included Accessories

• Nightstar 20x/40x100 large binoculars

• Lens caps

• Two eyepiece sets (four eyepieces total) for 20x and 40x magnification

• Aluminium transport case with foam inserts

Technical Specifications

• Optical design: Porro prism system

• Magnification: 20x and 40x

• Objective lens diameter: 100 mm

• Exit pupil: 5 mm (20x) / 2.5 mm (40x)

• Eye relief: 18 mm

• Diopter adjustment: ±4, adjustable on both eyepieces

• Glass material: BaK-4

• Focusing system: Individual eyepiece focusing

• Lens coating: Fully multi-coated

• Splash resistance: Yes

• Tripod connection: Direct 1/4-inch threaded connector

• Waterproof: No

Field of View

• True field of view: 2.5° at 20x / 1.5° at 40x

• Apparent field of view: 54° at 20x / 58.4° at 40x

• Field of view at 1,000 m: 47 m at 20x / 25 m at 40x

• Close focus distance: 20 m

• Light intensity: 25 at 20x / 6.3 at 40x

• Twilight factor: 44.7 at 20x / 63.2 at 40x

General Information

• Exterior finish: Rubber armoured

• Colour: Black and silver

• Dimensions: 445 mm (length) × 260 mm (width) × 133 mm (height)

• Weight: 6,850 g (without eyepieces)

• Series: Nightstar

Recommended Use

• Astronomy: Very good

• Hunting: Not recommended

• Travel and sports: Not recommended

• Sailing: Not recommended

• Theatre: Not recommended

• Birdwatching: Not recommended

The Omegon Nightstar is purpose-built for serious astronomical observation, offering powerful optics, flexibility, and comfortable long-duration viewing.