The gray filter 1.25'' ND-09 from Explore Scientific is the ideal tool for enhancing your lunar observations. By uniformly reducing brightness, this filter helps reveal details hidden by intense light. Perfect for observing the moon, it is also useful for binary star systems where a brighter star may obscure the other. This filter can be combined with other color filters for optimal performance on larger telescopes.

Features:

• Diameter: 1.25’’
• Densitiy: 0.9 (13% transmission)
• Reduces brightness without altering colors
• Ideal for observing the moon and binary stars
• Can be combined with other color filters

Benefits:

• Increases contrast for better visibility of lunar details
• Reduces excessive brightness for more comfortable observations
• Versatile: fits various telescopes and can be combined with other filters

Compatibility:

• Compatible with all telescopes accepting 1.25’’ filters

The ND-09 gray filter from Explore Scientific is essential for any lunar or binary star observation, providing improved image quality through optimal brightness management.