SVBONY 1.25" ND Neutral Density Moon Filter Kit for Telescope Eyepiece Reduce Overall Brightness

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About SVBONY 1.25" ND Neutral Density Moon Filter Kit For

SVBONY 1.25" neutral density moon filter kit reduces glare so you can see more lunar detail and surface features with your telescope Premium material: Aluminum frame;plastic thread and optical glass ND0.6 filter perfects for viewing Waxing 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 ND0.9 filter perfects for viewing Last Quarter Moon: 3 weeks after new;we again can see half of the illuminated part;this is usually called last quarter;Quarter Moon-a week after the new moon;when the Moon has completed about a quarter of its turn around the Earth;we can see half of the illuminated part; that is;a quarter of the Moon;this is the first quarter phase;it's very good effect to use the ND0.9 filter In this two time period ND1.2 filter perfects for viewing Gibbous Moon: from now on;until it becomes new again;the illuminated part of the Moon that we can see decreases;and we say it's waning;the first week after full;it is called waning gibbous;it's very good effect to use the ND1.2 filter at this time ND3.0 filter perfects for viewing Full Moon: 2 weeks after the new moon;the moon is now halfway through its revolution;and now the illuminated half coincides with the one facing the Earth;so that we can see a full disk;we have a full moon;it's very good effect to use the ND3.0 filter at this Specifications: Type: neutral density filter kit Material: optical glass lens;aluminum frame Shape: round Barrel diameter: 1.25'' Thread: standard M28.5x0.6mm Net weight: 5.0g / 0.19oz Package includes: 1xND4 (2-Stop ND) 1xND8 (3-Stop ND) 1xND16 (4-Stop ND) 1xND1000 (10-Stop ND) 1xSturdy plastic case