The SVBONY SV215 3–8mm Clickstop Zoom Eyepiece (1.25") is a high-power planetary zoom eyepiece designed for observers who want precise magnification control when viewing the Moon and planets. Covering a useful 3mm to 8mm focal length range, it allows fine tuning of magnification without changing eyepieces—ideal for working around changing seeing conditions.
Key Features
- 3–8mm zoom range for high-power planetary and lunar observing
- Clickstop zoom mechanism with fixed detents at each focal length
- Consistent apparent field of view across the entire zoom range
- Fully multi-coated optics for sharp, high-contrast images
- Standard 1.25" barrel compatible with most telescopes
- Durable construction designed for regular visual observing
Precision Clickstop Zoom Control
The SV215 features a true clickstop zoom mechanism, with positive detents at 8mm, 7mm, 6mm, 5mm, 4mm, and 3mm. This allows you to repeat exact magnifications reliably and quickly—particularly useful when fine-tuning planetary detail or comparing views under variable atmospheric conditions.
Consistent Field of View
Unlike many basic zoom eyepieces, the SV215 maintains a stable apparent field of view as the focal length changes. This makes manual tracking easier and provides a more consistent visual experience as you zoom in on planetary features.
The field of view remains consistent as magnification changes, allowing smooth visual transitions and a fixed reference point when zooming.
Optimised for Planetary & Lunar Observation
The short focal length range makes the SV215 particularly suitable for high-magnification targets such as the Moon, Jupiter, Saturn, and Mars. It allows you to match magnification precisely to seeing conditions, often achieving sharper results than fixed focal length eyepieces under unstable skies.
Build Quality & Compatibility
Constructed with durable materials and a standard 1.25" interface, the SV215 integrates easily with refractors, Maksutovs, Schmidt-Cassegrains, and Dobsonians. It is a strong choice for observers who want a compact, repeatable high-power zoom eyepiece for serious planetary work.
