The 1.25" light red filter No.23A from Explore Scientific is designed to completely block blue and blue-green light, thereby enhancing the contrast between dark and illuminated areas when observing planets such as Jupiter, Saturn, and Mars. It is particularly useful for visualizing the polar caps of Mars and for revealing more details in the cloud bands of Jupiter and Saturn. This filter slightly reduces brightness to prevent overexposure while accentuating subtle details during your observations.

Features:

• Diameter: 1.25"
• Completely blocks blue and blue-green light
• Made from high-quality optical glass
• Polished and anti-reflective surfaces for optimal transmission
• Black anodized aluminum design
• Double-threaded to combine multiple filters

Benefits:

• Greatly increases contrast between dark and illuminated areas
• Perfect for observing the polar caps of Mars and the atmospheric details of Jupiter and Saturn
• Reduces brightness to prevent overexposure
• Compatible with other filters due to its double-threading
• Comes with a dust protection case for secure storage

Compatibility:

• Compatible with all telescopes accepting 1.25" filters

The light red filter No.23A from Explore Scientific is an essential tool for amateur astronomers looking to enhance their planetary observations by accentuating contrasts and subtle details of the planets.