Meade Series 4000 #905 Variable Polarizing Filter (1.25")
For glare-reduction in observing the Moon, the Series 4000™ #905 Variable Polarizing Filter (1.25") allows decreasing the image brightness for more comfortable viewing. Includes two polarizer filters mounted in a special cell with finger adjustable control to vary light transmission from 5% to 25%. This allows for adjustment of the image brightness depending on the phase of the Moon, magnification in use, and the observer's preferences. Very handy item for the frequent Lunar observer.