1.25 Inch ND2/4/8/16 Telescope Moon Filter Neutral Density for Astronomical Eyepiece ND Aluminum Frame Plastic Thread Optical Glass (ND4)

1.Premium Material: The filter is made of high definition acrylic with good light transmittance, durable and no damage to your lens. 2.Sealing Ring: The aluminum alloy frame sealing ring has better sealing performance to avoid fall or loosen. 3.Shooting Effect: It can reduce brightness and reduce glare, but it will not change the natural color of the moon and increase the clarity of the moon.Boosting contrast and ability to discern detail on the Moon. 4.STYLE: 52%ND2, 25%ND4, 12.5%ND8, 6.25%ND16 5.You can use the telescope to see more details and surface features of the moon, making the shooting effect better. Helps reduce irradiation, which is the distortion at the boundary between light and dark areas as along the lunar terminator. 6.Wide Compatibility: It is suitable for various 1.25inch aperture astronomical telescopes. 7.How to use:Screw the ND filter directly into the 1.25inch eyepiece of the telescope to use.