SVBONY SV128 Telescope Filter Polarizing Filter for Astronomic Telescope Eyepiece 2 inches Variable Polarizer Lens Filter for Viewing The Moon and Planets

SV128 polarizing filter will fit all standard sized 2"" eyepieces and accessories. Used for viewing the Moon and Planets. SV128 polarizing filter consists of two polarizing filters; One can be rotated in its cell to adjust the brightness. Finer control of the image brightness compared to a standard fixed-transmission telescope filter for optimal performance. Progressively dim the view when observing a bright object; Such as the moon or certain planets. Rotating cell allows you to adjust the amount of light transmission from 1% to 40%. SV128 2 inch variable polarizing filter acts like a dimmer switch for your telescope. You can reduces brightness of the Moon or planets for great clear viewing. Made of HD optical glass; Good level of transmittance; Premium quality metal rim and optics glass lens. Sturdy plastic case included for better tightness;avoiding fall or loose