The 2" dark red filter No. 25 from Explore Scientific completely blocks blue and blue-green light, significantly increasing the contrast between dark and illuminated areas when observing Jupiter, Saturn, and Mars. This filter is particularly useful for distinguishing the details of Mars' polar caps and the cloud structures of the giant planets. It slightly darkens the image to avoid any overexposure, thus enhancing contrast and revealing subtle details in your planetary observations.

Features:

• Diameter: 2"
• Completely blocks blue and blue-green light
• Made from high-quality optical glass
• Polished and anti-reflective surfaces for optimal image quality
• Black anodized aluminum design
• Double-threaded to combine multiple filters

Benefits:

• Greatly increases contrast for observing Jupiter, Saturn, and Mars
• Allows for better observation of Mars' polar caps
• Reduces the risk of overexposure, revealing hidden details
• Compatible with other filters due to its double-threaded design
• Comes with a dust protection case for safe storage

Compatibility:

• Compatible with all telescopes that accept 2" filters

Ideal for astronomy enthusiasts looking to explore the details of planets, the dark red filter No. 25 from Explore Scientific is an essential tool for optimizing your planetary observations.