Okulár Binorum DeepSky SuperView 20mm 68° 1,25″

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Binorum.eu → Eyepieces → SWA (62°-78°)

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Okulár Binorum DeepSky SuperView 20mm 68° 1,25″

Article No.: 77305
Manufactured by: Binorum
Shipping weight: 0.162 kg

Our price: 57.50 €

In stock

We have the goods in stock at our store and we can send them immediately.

We do not have the goods physically with us, but it is available from a remote supplier. In this case, we order them immediately and therefore it may take several weeks before we are able to send them to you.

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This product is available in the following variants:
Okulár Binorum DeepSky SuperView 20mm 68° 1,25″	57.50 €
Binorum DeepSky SuperView 30mm 68° 2″ Eyepiece	82.20 €
Binorum DeepSky SuperView 42mm 65° 2″ Eyepiece	82.20 €
Binorum DeepSky SuperView 50mm 60° 2″ Wide-Angle Eyepiece	90.45 €

Premium Wide-Angle Telescope Eyepiece

Experience the universe like never before with this exceptional wide-angle telescope eyepiece – your gateway to breathtaking views of distant celestial wonders.

See More of the Sky

Imagine capturing more of the cosmos in a single view. This eyepiece features an impressive 68° field of view, allowing you to observe larger portions of star clusters, nebulae, and galaxies without constantly repositioning your telescope. It's like upgrading from a small window to a panoramic vista of the universe.

Beyond Ordinary Eyepieces

Traditional Plossl eyepieces offer around 50° field of view – perfectly adequate for basic observation. But this wide-angle eyepiece takes your stargazing experience to the next level, revealing 36% more sky in every glance. Whether you're tracking the Andromeda Galaxy, exploring the Orion Nebula, or sweeping through the Pleiades star cluster, you'll appreciate the extra viewing area that brings deep sky objects to life.

Comfortable Viewing Sessions

The foldable rubber eyecup ensures comfortable viewing for everyone – whether you wear glasses or prefer direct eye contact with the eyepiece. Spend hours exploring the night sky without eye strain or discomfort.

Perfect For

This eyepiece is ideal for astronomy enthusiasts who want to enhance their telescope's capabilities. It's particularly valuable for observing extended deep sky objects like nebulae, galaxies, and star clusters where the wider field of view makes all the difference between a good observation and an unforgettable one.

Upgrade your telescope today and discover what you've been missing in the night sky!

Specifications

Type of eyepiece: Erfle

Focal length: 20 mm

Connection type: 1.25″

Variety of eyepiece: UWA

Apparent field of view: 68°

Eye relief: 18 mm

Number of optical components / single lenses: 5/3

Coating of optical system: FMC

Length: 78 mm

Telescope parameters using this eyepiece

Aperture mm

Focal length telescope mm

Specifications:

Magnification:

Telescope magnification is calculated by dividing the telescope's focal length by the eyepiece focal length. A Barlow lens also affects magnification: the power increases according to the Barlow's multiplication factor.

Field of View:

The field of view is the angular size of the sky area visible through the telescope with a given eyepiece. It depends on both the magnification and the eyepiece's apparent field of view. For comparison, the Moon's average apparent diameter is 0° 31' 5" (0.518°).

Exit Pupil:

The exit pupil is the diameter of the light beam that exits the eyepiece and enters your eye. A larger exit pupil produces a brighter image. Exit pupil is calculated by dividing the aperture diameter by the magnification.

Focal Ratio:

The focal ratio (also called f-number or f-stop) is the ratio of the telescope's focal length to its aperture diameter. Telescopes with focal ratios from f/4 to f/6 are typically called "fast" telescopes, suitable for both visual observation and astrophotography. Telescopes with focal ratios between f/6 and f/15 are better suited for visual observation than photography, and generally make it easier to achieve higher magnifications.

Resolution (Dawes Limit):

Resolution is the angular size of the smallest details and objects that can be distinguished through this telescope under excellent observing conditions. This theoretical limit assumes perfect optics and atmospheric conditions.

Limiting Magnitude:

This is the faintest star magnitude visible through this telescope under excellent observing conditions with dark, clear skies and a fully dark-adapted eye.

Magnification with this eyepiece

330

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196x

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