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Binoculars > Instruments > Omegon > Nightstar > Omegon Binoculars Nightstar 20+40x100 Triplet with Variable Eyepieces
Product no.: 14697

Binoculars Nightstar 20+40x100 Triplet with Variable Eyepieces

$ 1,490.00 incl. VAT, plus shipping costs
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Product description

More about the series Nightstar...

The new Omegon Nightstar - outstanding large binoculars at a low price

With an objective diameter of 100mm, the Omegon Nightstar provides a very bright image and is perfect for observing the night sky. The new three-element design substantially improves image colour - it can therefore be ranked among the half-apochromats.

Now still more universally usable

Now with connectors for accepting 1.25” eyepieces, there is nothing standing in the way of using your own eyepieces. Due to the relatively short focal length of 560mm however, the magnification used should not exceed 100X. The binoculars come with two pairs of eyepieces already included, allowing you to select between magnifications of 20X or 40X. The use of separate 1.25" eyepieces now also allows the observer to use nebula filters for observing DSOs.

These large binoculars let you to observe the night sky in particular comfort because using both eyes is less strenuous and much more fun. The large objective diameter makes a rich variety of objects visible. Objects appear differently compared to the view through a telescope, they seem three-dimensional. In addition, there are two 100mm apertures providing more light gathering capacity than the single aperture of a 100mm telescope, with which one observes monocularly anyway. Open clusters, extended emission nebulas and other DSOs can all be well seen.

Omegon Nightstar 20+40x100 Triplets are optically and mechanically outstandingly well-constructed binoculars.

The advantages in a nutshell:

  • wide range of standard 1.25“eyepieces usable
  • multi-coated optical surfaces
  • very sharp field of view
  • eyepieces separately focusable
  • viewing distance can be precisely adjusted

    Included in delivery:
  • adjustable aluminium dew shields with front end caps
  • removable carrying handle, attached with two hand screws
  • tripod adapter with ¼“ threaded socket
  • 20X eyepiece set (multi-coated) and 40X eyepiece set (multi-coated)

lockable aluminium carrying case with moulded padding

Our expert comment:

The currently available Omegon Nightstar 20-40x100 binoculars are a development of their popular predecessor and have the same lens diameter. The new version now has triplet objective lenses employing special glass. This has allowed significantly improved sharpness and field flatness. 2 pairs of eyepieces, for the 20X and 40X magnifications, are included in delivery. The eyepieces have a front thread for taking a normal 1.25 inch nebula filter. These Night Star binoculars are ideal for observing extended objects such as the North America Nebula, the Veil Nebula or the California Nebula. We recommend the use of a UHC-Filter.

Additional magnifications, to complement the 20X and 40X, are possible. Normal astronomical eyepieces can be used. In testing, we were very impressed by the sharpness and contrast delivered by the large 100mm lenses. The instrument is unique in its price range! Using the 40X eyepieces, from our headquarters in Landsberg we could even observe the building on the top of the Zugspitze Mountain - a distance of 72km away! We took a photo of this with a digital SLR camera positioned behind one eyepiece. The photo even shows, albeit somewhat fuzzily, the cable for the Zugspitze cable car!

(Bernd Gährken)



Type of build
Porro prisms
40 (20+40)
Front lens diameter (mm)
Exit pupil (mm)
5,0 (5,0 at 20x / 2,5 at 40x)
Eye relief (mm)
Diopter compensation
+/- 4
Interpupillar distance (mm)
Glass material
Focusing system
Single focusing
Lens coating
fully, multiple
Diopter-adjustment side
on both sides (Single eyepiece focusing)

Special features

Zoom function
Eyepieces for spectacle wearers
Image stabilizer
Protection bag
Aluminium case
Threaded tripod connector
Direct connection w/o adapter

Field of view

True field of view (°)
2,7 (2.5 at 20x / 1.5 at 40x)
Apparent field of view (°)
54,0 (54 at 20x / 58.4 at 40x)
Field of view at 1,000 m (m)
47 (47 at 25x / 25 at 40x)
Close focus limit (m)
Light intensity
25,0 (25.0 at 20x / 6.3 at 40x)
Twilight factor
63,2 (44,7 at 20x / 63,2 at 40x)


Surface material
Rubber armouring
Length (mm)
Width (mm)
Height (mm)
Weight (g)

Area of application

very good
not recommended
Travel and sports
not recommended
not recommended
not recommended
Bird watching
not recommended

Recommended accessories

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Outdoor (1)

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Solar Observation (1)
Solar Filters

euro EMC SF100 solar filter for 100mm binoculars

$ 77.00*
Maintenance & Cleaning > Lens cleaners (3)

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Maintenance & Cleaning > Other (2)

Omegon SPUDZ microfaser cleaning cloth

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*All prices include VAT plus shipping costs.

Omegon Binoculars Nightstar 20+40x100 Triplet with Variable Eyepieces

The Zugspitze in Landsberg am Lech through Omegon 20-40x100s

Omegon Binoculars Nightstar 20+40x100 Triplet with Variable Eyepieces

multi-coated optical lenses

Omegon Binoculars Nightstar 20+40x100 Triplet with Variable Eyepieces

any 1.25" eyepiece can be used

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