When selecting a 2-inch Moon filter for your telescope, consider the following options which are highly regarded for quality and performance:
Orion 2″ 13% Transmission Moon Filter: This filter is ideal for revealing lunar details by reducing glare while maintaining a natural view of the Moon. Its 13% transmission effectively dims the overly bright image, providing comfortable eye relief even under bright moonlight.
Baader Planetarium ND 0.9 Moon & Skyglow Filter: Known for excellent optical quality and enhancing lunar contrast, this option reduces sky brightness and visual noise while offering a clear and sharp view of lunar features without significant color distortion.
Lumicon 2″ Neutral Density 25% Moon Filter: This neutral density filter is another good option, effectively dimming the Moon’s brightness with a 25% transmission level. It preserves the true color and details of lunar observations, making it well-suited for both casual viewing and astrophotography.
Celestron 2″ Neutral Density Moon Filter: Celestron offers a reliable option that cuts down the brightness significantly and helps in observing fine details of the Moon’s surface without adding any color cast to the image.
Explore Scientific 2″ Variable Polarizing Filter: While not strictly a Moon filter, this variable polarizing filter allows you to adjust the level of light transmission, making it highly versatile for different phases and illumination levels of the Moon.

Remember, choosing the right Moon filter also depends on personal preference and observing conditions, such as light pollution and the phase of the Moon you intend to observe. These filters help provide clear, crisp views by reducing glare and enhancing detail, making lunar observation much more enjoyable.