🌖 SVBONY SV139 Telescope Filter: Moon Filter 1.25" 25% Transmission ND4 Neutral Density Filter for Telescope Eyepiece - Reduce Moon Surface Brightness Review

Help you watch the moon comfortably; The 1.25" Neutral Density Moon filter can reduce the amount of light reaching the film without affecting the color; and reduces glare so you can see more lunar detail and surface features with your telescope. Durable Material; The included filters are made of HD optical glass; Good level of transmittance; Aluminum alloy frame sealing ring for better tightness; avoiding fall or loose. Protect vision; ND4 filter transmits only 25% of the incoming light; help reduce radiation; reduce deformation between light and dark areas at the edge of the moon; help protect dark-adapted vision when viewing the moon's surface. Suitable for watching the crescent moon; As the Moon moves around the Earth; we get to see more and more of the illuminated half; and we say the Moon is waxing; At first we get a sliver of it; which grows as days go by; This phase is called the crescent moon; It's very good effect to use the ND0.6 filter at this time. Applicable standard 1.25 inch; Metal filter cell threads directly into the 1.25 inch barrel of your telescope eyepiece; Let you achieve a sharper image directly; Useful for different caliber astronomical telescopes through which the light of the Moon can be extremely overwhelming.