Celestron 94107 Variable Polarizing Moon Filter - Reduces Brightness and Glare, Compatible with 1.25" Eyepieces and Suitable for Lunar, Venus & Double Star Observation, Black

• REDUCED BRIGHTNESS AND GLARE: Improves views of the brightest celestial objects like the moon, Venus and bright double stars.
• CUSTOMISED CONTROL: Adjust the level of light transmission from 1-40% for the best possible view for your specific target and current viewing conditions.
• SIMPLE TO USE: Just rotate the filter’s lower ring to adjust brightness.
• ATTACHMENT INSTRUCTIONS: The Variable Polarizing Filter threads onto any Celestron 1.25” eyepiece.
• STACKABLE: The filter can be threaded on both sides so you can stack it with other filters, such as colour or neutral density, if needed.

The Earth’s Moon is the most popular object to observe with a telescope. It’s an obvious target that’s easy to locate and full of exciting geographical features to explore. The Celestron variable polarizing filter enhances lunar viewing by cutting the Moon’s bright glare by up to 40%, improving contrast and making faint details easier to observe. Most amateur astronomers keep a Moon filter on hand as an essential part of their observing kit because it provides a more comfortable view and reduces eye fatigue. This filter goes beyond a traditional Moon filter by allowing you to customize the level of light transmission from 1% to 40%. It does not alter the color of the object you’re observing, making it a great choice for astroimaging, especially when imaging the surface of the Moon. But a polarizing filter isn’t just for the Moon; it also boosts contrast when viewing deep-sky objects from light polluted areas. And for terrestrial observers, the Moon filter cuts down the brightness when viewing land-based targets around sand and snow. The Celestron Moon Filter simply screws onto the insert barrel of most 1.25” eyepieces and can stack with other 1.25” filters.