The SVBONY SV245 Zoom Eyepiece (8–16 mm) offers a well-balanced combination of flexibility, comfort, and optical performance. With a focal length range from 8 mm to 16 mm, it provides a 2× zoom function that allows quick magnification adjustments without the need to change eyepieces. The apparent field of view is specified by the manufacturer as 63°, while user measurements report values between approximately 60° and 70°. The eyepiece features a parfocal design, meaning that little to no refocusing is required when zooming. Its “Click-Stop” mechanism ensures precise detents at each focal length.

The optical system consists of eight fully multi-coated lens elements, including aspherical lenses, providing high sharpness and contrast. With an eye relief of about 17–18 mm, the SV245 is also comfortable for eyeglass wearers. The eyepiece features a sturdy metal housing and filter threads in M28.5×0.6 and M48×0.75 sizes. It is compatible with both 1.25″ and 2″ barrels, making it particularly versatile — suitable for use with larger telescopes or binocular viewers.

This eyepiece is ideal for planetary and lunar observation, as the zoom range allows smooth transitions from wide-field overviews to detailed close-ups. It is also a practical choice for users who prefer not to switch eyepieces frequently.

Key strengths of the SV245 include its solid build quality, excellent price-performance ratio, and user-friendly design with parfocal optics and a click-stop mechanism. The dual barrel compatibility adds further flexibility. Overall, the SVBONY SV245 offers an impressive all-around package for amateur astronomers who value quality and versatility.

Scope of Delivery:

• Zoom Eyepiece