The 1.25" light red filter No.23A from Explore Scientific is designed to completely block blue and blue-green light, thus enhancing the contrast between dark and illuminated areas when observing planets like 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 avoid overexposure, while emphasizing subtle details during your observations.

Features:

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

Benefits:

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

Compatibility:

• Compatible with all telescopes that accept 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 emphasizing contrasts and subtle details of the planets.