SVBONY SV191 Zoom Eyepiece 7.2-21.6mm 1.25"
Zoom eyepiece for telescopes and spotting scopes with paracolic design and 18-20mm eye relief. Users note smooth magnification changes with good edge contrast and comfortable viewing
Highlights
- zoomable magnification without refocusing
- parfocal design for minimal refocus
- high-index glass elements for sharp contrast
Pros
- zoom range 7.2-21.6mm
- parfocal design
- 7-element 4-group lens for sharp contrast
- 1.25" standard eyepiece compatibility
- 18-20mm eye relief with twist-up eyecup
Cons
- mixed feedback on eyecup twistability
- edge-of-field performance noted as good but not perfect
Best For
Features
- Zoom eyepiece covers 7.2–21.6mm magnification range for single eyepiece use
- Parfocal design allows magnification changes without refocusing
- Seven-element, four-group lens with high-index glass for sharp, high-contrast views
- M28.5×0.6 filter threads on base; accepts standard 1.25 in filters
- 18–20mm eye relief with twist-up rubber eyecup for comfortable viewing
