Meade Variable Polariser 1.25in #905 by Meade
Meade Variable Polariser 1.25in #905
Variable Polarizer 1.25 inch #905.#905 Variable Polarising Filter (1.25") – For glare-reduction in observing the Moon the #905 Variable Polariser includes two Polariser filters mounted in a specially-machined cell. The #905 permits variable settings of the light transmission between 5% and 25%, to account for varying lunar surface brightness according to the phase of the Moon and the magnification and aperture of the telescope. Accepts 1.25" eyepieces.