Vixen SLV 12mm eyepiece 50° 1.25″

Vixen SLV 12mm eyepiece 50° 1.25″

The Vixen SLV 12mm is a high-end eyepiece designed for observers who refuse to compromise on image quality. At the heart of this eyepiece is a 7-element lanthanum optical design that delivers exceptional sharpness and colour fidelity across the entire 50° apparent field of view. Precision multi-layer anti-reflection coatings ensure high light transmission, revealing fine planetary detail and star cluster structure with maximum contrast. The resulting image is strikingly clean, free from chromatic aberration, and provides a genuinely rewarding view of the night sky.

Optical performance

Lanthanum glass elements used in the SLV series have a high refractive index and low dispersion, properties that allow the optical designer to reduce the number of lens groups while still achieving superior correction of aberrations. Compared with standard eyepieces in this focal length range, the SLV 12mm produces noticeably better edge-of-field correction, making stars appear sharp and round right to the periphery of the field. Colour rendering is neutral and natural, which is particularly valuable when studying planetary surface features or splitting close double stars.

Comfort and ergonomics

Observing comfort matters as much as optical quality during long sessions at the telescope. The Vixen SLV 12mm addresses this with a generous 20mm eye relief, allowing eyeglass wearers to use the eyepiece without pressing their spectacles against the eye lens and without losing any portion of the field of view. The retractable rubber eyecup can be folded down for spectacle users or extended to the preferred position for those observing without glasses. The adjustment is smooth and holds its position reliably throughout a session.

Compatibility and filter thread

The standard 1.25″ barrel diameter ensures direct compatibility with the focuser of virtually every telescope currently available. A precision-cut filter thread on the barrel accepts standard 1.25″ filters - lunar, planetary, narrowband UHC or light pollution filters - so the eyepiece integrates naturally into an existing accessory system without the need for adapters.

Recommended applications

• Planetary observation - Jupiter, Saturn, Mars, Venus and Mercury
• Lunar surface detail and crater morphology
• Close double star splitting
• Globular and open star clusters
• Bright nebulae when used with a suitable narrowband filter

The Vixen SLV eyepiece series is widely recognised among amateur astronomers as one of the most capable choices in its class. A 12mm focal length places the eyepiece precisely in the range most useful for high-magnification planetary and lunar work, while still offering comfortable eye relief and a usable field of view. Whether you point your telescope at Jupiter's cloud belts, the rings of Saturn or the craters of the Moon, the SLV 12mm will consistently deliver a view that justifies the investment.

Technical specifications