Sky-Watcher Nirvana 4mm 1.25” Lens”

Sky-Watcher Nirvana 4mm 1.25” Eyepiece - Total Immersion for Visual Astronomy

Discover a new way of observing the sky with these 82° ultra wide-field eyepieces with 1.25” flow”, designed to offer a spectacular and immersive viewing experience. Thanks to their huge apparent field of view of 82 degrees, These lenses deliver an impressive sense of spaciousness that rivals some of the best premium models on the market, while remaining extremely competitively priced.

Whether you're observing the Moon, planets, star clusters, nebulae or galaxies, these eyepieces deliver detailed, high-contrast, comfortable images. Their advanced optical design ensures excellent edge-of-field correction, keeping stars fine and sharp even in peripheral areas of the image. The result is a particularly pleasant, natural observation experience, ideal for demanding amateur astronomers and experienced observers alike.

82° Ultra Wide Apparent Field

The main advantage of this range is its 82° ultra-wide apparent field of view. This feature offers an exceptional panoramic view of the deep sky and greatly enhances the immersive effect of observation. The user literally has the impression of “diving” into space.

This wide field of view also makes it easier to follow celestial objects in non-motorized telescopes, as they remain visible for longer in the eyepiece before leaving the field. This considerably improves comfort of use during long observing sessions.

Advanced Optical Quality

Each model is built with 7 optical elements divided into 4 groups, A sophisticated design guarantees excellent image quality across the entire field. High-quality optical coatings ensure high light transmission and outstanding contrast.

The lenses are fully treated with a complete broadband multilayer coating, This effectively reduces internal reflections and enhances the brightness of the objects observed. The blackened lens edges and the internal baffling limit stray light and further enhance image contrast.

Thanks to their meticulous design, these eyepieces work admirably on telescopes of all focal lengths, whether fast or long. They offer excellent versatility for a wide range of astronomical configurations.

Optimal viewing comfort

These eyepieces have been designed for maximum comfort during prolonged observation. They feature large eye lenses for easy eye placement and a pleasant open feeling.

Visit soft rubber folding eyelets further enhance user comfort, especially for spectacle wearers. Visit 12 mm eye relief on all models ensures a comfortable, uniform viewing distance across the entire range.

All models are also parfocaux, This means that very little re-focusing is required when changing eyepieces. This makes observations much smoother and more pleasant in the field.

Premium Manufacturing and Compatibility

The quality of the workmanship is immediately apparent, thanks to a particularly meticulous finish. The eyepieces are made of high-gloss anodized aluminum with knurled rubber grips for excellent grip, even when wearing gloves or in wet conditions.

The standard format 1.25” guarantees compatibility with the vast majority of telescopes and astronomical scopes on the market. Each eyepiece is also threaded to accept standard 1.25” filters”, This allows the use of lunar, UHC, OIII or colored filters, depending on your observation needs.

Weighing in at around 170 g, These eyepieces remain relatively lightweight, while retaining excellent mechanical robustness, making them suitable for both small frames and larger configurations.

Technical data table

Thanks to their combination of huge 82° field of viewof advanced optical qualityof exceptional comfort and premium manufacturing, These eyepieces are an excellent choice for all astronomy enthusiasts wishing to enjoy immersive, detailed observations without compromise.