Binoculars
& Field Glasses

Close up without being there – binoculars for birdwatching, hunting, hiking, events and astronomy from trusted optics manufacturers.

Precision Optics

High-quality glass lenses with multi-coating for sharp, high-contrast images

Versatile Magnifications

From compact 8×21 to powerful 20×80 models

Brands in Stock

Delta Optical, Bresser, Bushnell, Alpen Optics and other manufacturers

Swiss Warehouse

Fast delivery directly from our warehouse in Switzerland

At a Glance

Magnifications from 8× to 20× for a wide range of needs
Objective diameters from 21 mm to 80 mm – compact to light-gathering
ED glass and phase-corrected prisms for colour-true rendering
Roof prism and Porro prism designs in stock
Waterproof and fogproof (nitrogen-filled) on many models
Applications: birdwatching, hunting, hiking, events, astronomy
Rubber armouring for secure grip and shock absorption
Twist-up eyecups for spectacle wearers
Price range from CHF 28 to CHF 924
Free shipping from CHF 100 in the Swiss online shop

Binoculars – Bringing the World Closer

A pair of binoculars (also called field glasses) is one of the most versatile optical instruments available. It magnifies distant objects and reveals details invisible to the naked eye. The combination of magnification and objective diameter – for example 10×42 – determines the key characteristics: how close and how bright the image appears.

Modern binoculars use premium glass types such as ED glass (Extra-low Dispersion) to minimise colour fringing and multi-coatings (Fully Multi-Coated) for maximum light transmission. Roof prisms enable slim, compact designs, while Porro prisms deliver a particularly vivid, three-dimensional image. Many models are nitrogen-filled, making them waterproof and fogproof – essential for outdoor use in any weather.

Buying Guide – Binoculars

What Do the Numbers Mean (e.g. 10×42)?

The first number indicates the magnification – 10× means an object appears ten times closer. The second number is the objective diameter in millimetres – 42 mm describes the size of the front lens. A larger objective diameter gathers more light and delivers a brighter image, which is especially advantageous at twilight.

Exit Pupil – the Key to Brightness

The exit pupil (objective diameter divided by magnification) determines how bright the image appears. A 10×42 binocular has an exit pupil of 4.2 mm, an 8×42 has one of 5.25 mm. For twilight observation and hunting, an exit pupil of at least 4 mm is recommended, ideally 5 mm or more.

Roof vs. Porro Prisms

Roof-prism binoculars are slim, compact and sit well in the hand. Porro-prism binoculars have the classic offset shape and often deliver a somewhat more vivid, three-dimensional image at the same quality level. For mobile use, roof-prism models are more practical; for stationary observation, Porro models can offer optical advantages.

Waterproof and Fogproof

Premium binoculars are filled with nitrogen or argon, preventing internal lens fogging. They are also waterproof (often IPX7) and suitable for any weather. For regular outdoor use, this feature is highly recommended.

Areas of Use

Binoculars are universally useful: birdwatchers appreciate bright 8×42 or 10×42 models with wide fields of view. Hunters prefer rugged, twilight-capable optics. Hikers opt for compact, lightweight models (8×25 or 10×25) that fit in any jacket pocket. For sports events and concerts, handy compact binoculars work well, and astronomy enthusiasts reach for high-aperture models with 70–80 mm objectives.

Tip: If possible, test binoculars before buying: look through both eyepieces and check whether the image is sharp all the way to the edges. Ensure the eyecups are adjustable for spectacle wearers and that the dioptre correction operates smoothly.

Product	Brand	Magnification	Feature	Price
Spectator Sport 12x50	Delta Optical	12×50	Porro prism, robust	CHF 28
Travel 8x21	Bresser	8×21	Compact, foldable	CHF 39
Powerview 2 10x42	Bushnell	10×42	Multi-coated, roof prism	CHF 130
Forest II 8x42	Delta Optical	8×42	ED glass, waterproof	CHF 350
Rainier HD ED 8x42	Alpen Optics	8×42	HD ED glass, magnesium	CHF 924

Why Binoculars from Swiss-Sale.ch?

Our range includes binoculars from Delta Optical, Bresser, Bushnell and Alpen Optics – from affordable entry-level models for casual users to premium ED optics for discerning nature observers and hunters.

✓ Wide range from CHF 28 to CHF 924
✓ Renowned brands: Delta Optical, Bresser, Bushnell, Alpen Optics
✓ Personal expert advice and fast delivery from Switzerland
✓ Free shipping from CHF 100

FAQ – Binoculars

What magnification is best for beginners?

For beginners, 8× or 10× magnification is recommended. 8× offers a wider field of view and a steadier image, 10× brings more distant objects closer. Magnifications above 12× require steady hands or a tripod and are better suited for experienced users.

What is ED glass and why is it better?

ED stands for Extra-low Dispersion. This special glass minimises chromatic aberration – colour fringing at high-contrast edges. The result is a sharper, colour-neutral image. Binoculars with ED glass are particularly suited for birdwatching and hunting where detail accuracy is crucial.

Do I need waterproof binoculars?

For regular outdoor use, waterproof binoculars are recommended. Nitrogen- or argon-filled models also prevent internal lens fogging during temperature changes. For occasional use in good weather, a splash-resistant model may suffice.

What is the difference between roof and Porro prisms?

Roof-prism binoculars are slim and compact, ideal for mobile use. Porro-prism binoculars have a wider, offset shape and often deliver a more vivid, three-dimensional image with better depth perception at the same quality level.

Which binoculars are suitable for spectacle wearers?

Look for a sufficiently long eye relief of at least 15 mm. Binoculars with twist-up or fold-down eyecups can be optimally adjusted for spectacle wearers. Most premium models in our range meet this requirement.