1.25 inch moon filter reduce the amount of light entering the eyepiece and increase the eyepiece contrast
The moon filter reduces the glare;allowing transmission of only 13 percent of the reflected ligh;which means you can see the surface more clearly and study the Moon in greater comfort
Allow for maximum contrast of lunar detail enhances the contrast of the moon and planets in photographic images
Neutral colored optical glass does not change the moon's natural color
Have a standard 1.25 inch filter thread (M28.5 x 0.6)
Finer control of the image brightness compared to a standard fixed-transmission telescope filter for optimal performance
Adjust the amount of light transmission from 1% to 80% by rotating the filter housing
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