SVBONY SV229 Solar Eclipse Filter (140 mm) is a full-aperture metal solar filter designed for safe observation of the Sun, solar eclipses, and sunspots. It conforms to ISO 12312-2:2015 and provides reliable protection for both visual observation and solar imaging.

Key Features

• 140 mm full-aperture solar filter
  Designed for larger telescopes, providing safe and evenly illuminated solar views.
• ISO 12312-2:2015 certified
  Meets international safety standards for direct solar observation.
• High-quality optical coating
  Produces clear, high-contrast solar images while blocking harmful UV and IR radiation.
• Aluminium frame construction
  Rigid metal frame offers superior durability and stability compared with plastic designs.
• Secure adjustable fit
  Three metal clamping screws with protective caps ensure a snug and reliable attachment.

Compatible Telescope Sizes

The SV229 features an inside diameter of 140 mm and is designed to fit optical tubes with an outer diameter between 118 mm and 159 mm.

Solar Observation Applications

Solar Eclipses

Sunspots

General Solar Observation

This solar filter provides crisp views of sunspots, solar granulation, and eclipses while rejecting harmful ultraviolet and infrared radiation. The Sun appears in a natural orange colour for comfortable visual observing and imaging.

Compatibility

Compatible with the SVBONY SV550-122 mm telescope and other telescopes within the supported outer diameter range. Recommended for solar observation and sunspot viewing below 100× magnification.

Safety & Usage

Always inspect the filter before use. Do not use if the filter is damaged, punctured, torn, or separated from the frame in any way.

Certification

SVBONY solar filters are listed by the American Astronomical Society (AAS) as safe for solar viewing when used correctly.