The SVBONY SV190 UF 10mm Ultra Flat Field Eyepiece (1.25″) is designed to deliver sharp, distortion-free views across the entire field. With an ultra-flat field optical design, fully multi-coated lenses, and a 60° apparent field of view, this eyepiece is well suited to lunar, planetary, and compact deep-sky observing.
Key Features
- Ultra flat-field design – minimises field curvature for sharp focus from centre to edge
- Fully multi-coated optics for improved light transmission and contrast
- 60° apparent field of view for an immersive yet controlled visual experience
- Comfortable eye relief suitable for extended observing sessions
- Precision aluminium housing designed for durability and outdoor use
Ultra Flat Field for Clean, Sharp Views
The SV190 UF uses a corrected ultra-flat field optical design to reduce edge distortion, keeping stars tight and well defined across the field. This is especially beneficial when observing dense star fields or when using faster telescopes where field curvature is more noticeable.
High-Quality Optics & Contrast
Fully multi-coated optical elements maximise light transmission while suppressing internal reflections. The result is brighter images, improved contrast, and better colour neutrality— particularly important when observing fine lunar and planetary detail.
Comfortable Viewing & Ergonomic Design
The SV190 UF 10mm provides comfortable eye positioning and is suitable for longer observing sessions. Its balanced design and smooth barrel finish make it easy to handle during eyepiece changes, even in cold or dark conditions.
Wide Compatibility
With a standard 1.25″ barrel, the SV190 UF 10mm is compatible with most amateur telescopes, including refractors, Schmidt-Cassegrains, Maksutovs, and Dobsonians. It is an excellent choice for observers looking to upgrade from basic kit eyepieces to a more refined flat-field design.
