Vixen SLV 15mm eyepiece 50° 1.25″
The Vixen SLV 15mm is a high-performance eyepiece designed for astronomers who demand clarity, contrast and reliable color rendition. Built around a 7-element lanthanum optical design, it delivers exceptional sharpness across the entire 50° apparent field of view - making it equally well suited for detailed planetary observation and extended deep-sky sessions.
Optical design and coating
The SLV series uses lanthanum glass elements, which offer a higher refractive index and lower dispersion compared to standard optical glass. The result is noticeably reduced chromatic aberration and precise, high-contrast images even at the edge of the field. All air-to-glass surfaces are fully multi-coated (FMC), ensuring high light transmission and minimizing internal reflections and ghosting.
Comfort and usability
The eyepiece features a generous 20mm eye relief, which allows comfortable viewing without pressing your eye against the lens. A roll-down rubber eyecup accommodates both naked-eye observers and those wearing glasses. The standard 1.25″ barrel accepts any 1.25″ filter - useful for lunar, planetary and narrowband visual observation.
Key specifications
| Parameter |
Value |
| Focal length |
15mm |
| Apparent field of view |
50° |
| Optical design |
7-element lanthanum (SLV) |
| Coatings |
Fully multi-coated (FMC) |
| Eye relief |
20mm |
| Barrel diameter |
1.25″ |
| Eyecup |
Roll-down rubber |
| Filter thread |
Standard 1.25″ |
What can you observe with the Vixen SLV 15mm?
With a 15mm focal length, this eyepiece provides a versatile magnification suitable for a wide range of telescopes. It is particularly popular for:
- Planetary observation - Moon, Jupiter, Saturn, Mars and Venus
- Double stars and globular clusters
- Bright nebulae and open clusters
- General survey and orientation sessions
The Vixen SLV series is widely regarded as one of the best mid-range lanthanum eyepiece lines available today, offering a performance level typically associated with much more expensive designs.
Compatibility
The 1.25″ barrel fits all standard focusers and diagonal prisms. The filter thread at the base of the barrel is compatible with the full range of 1.25″ astronomical filters, including color, neutral density, UHC and narrowband filters.
Who is this eyepiece for?
The Vixen SLV 15mm is a practical, no-compromise eyepiece for observers at any level - from beginners building their first quality kit to experienced astronomers who want a dependable, optically clean performer for planetary nights. Its balanced combination of field of view, eye relief and optical quality makes it a natural first choice when upgrading from a basic eyepiece set.
