saxon Colour Planetary Filter No.23A – Light Red (1.25")

Enhance your planetary observations with the saxon Colour Planetary Filter No.23A – Light Red (1.25"), a powerful tool for improving contrast and surface detail. With 25% light transmission, this filter excels at revealing the dark maria on Mars, enhancing visibility of Jupiter’s belts and polar regions, and sharpening views of Saturn’s rings and polar areas.

By reducing the transmission of blue and green wavelengths, the #23A filter delivers high-contrast, vivid images—especially when viewing planetary features through medium to large aperture telescopes. It threads easily onto any 1.25" eyepiece, making it a simple and effective upgrade for your observational kit.

While digital imaging software now offers colour adjustment tools, this optical filter remains essential for live visual astronomy and planetary astrophotography, where real-time contrast improvements make a significant difference.

Key Features:

• 1.25" threaded filter compatible with standard eyepieces
• 25% light transmission for optimal contrast
• Reveals dark maria on Mars for clearer surface detail
• Enhances Jupiter’s belts and polar regions
• Sharpens views of Saturn’s rings and polar areas
• Filters out blue & green wavelengths for higher contrast
• Premium optical glass for crisp, precise imaging