Celestron 8-24mm Zoom
Top PickWhat We Like
- Zoom range replaces three or more fixed eyepieces in one barrel.
- Solid optical performance with fully multi-coated lenses for good contrast.
- Simple twist-to-zoom mechanism works smoothly and stays secure.
- Fits any telescope with a standard 1.25-inch focuser.
Worth Noting
- Image sharpness softens at the 8mm and 24mm ends of the zoom range.
- Eye relief becomes tight at high magnification, less comfortable for eyeglass wearers.
- Kit Contents
- Single eyepiece
- Apparent Field
- 55°
- Focal Length Range
- 8-24mm zoom
- Optical Design & Coatings
- Multi-element, fully multi-coated
Twisting the barrel smoothly shifts magnification from a wide 24mm to a tighter 8mm, eliminating the need to stop and swap eyepieces mid-session. That single convenience is the core reason this eyepiece suits observers who want to spend less time fumbling with a case and more time actually looking at the sky.
Optically, the zoom delivers a fully multi-coated view that is crisp across much of its range. At the wider settings, the image holds up well for scanning star fields or framing the Andromeda Galaxy. Toward the 8mm end, some softening in sharpness becomes noticeable, and the view darkens slightly compared to a dedicated high-power eyepiece. This is the tradeoff for flexibility: you gain range, but peak sharpness is reserved for fixed focal-length designs.
This eyepiece fits any telescope that accepts 1.25-inch eyepieces, and the twist-up eyecup makes installation quick. Eye relief gets tight at the highest magnifications, which can be a limitation for eyeglass wearers who need to keep their glasses on. For observers without glasses, the 55-degree apparent field is comfortable through the entire zoom.
Beginners learning their preferred magnification will appreciate being able to dial in exactly the right view without buying a full set. Travelers benefit from carrying one eyepiece instead of several. If your primary goal is maximum sharpness for critical planetary observing, a premium fixed eyepiece in the needed focal length remains a better choice.
Tip: At 8mm, fold down the rubber eyecup to get a bit more eye relief; eyeglass wearers may still find it snug.
Bottom line: Ideal for observers who prioritize versatility over absolute optical fidelity — especially travel-friendly and beginner-oriented.