The 1.25" Celestron Variable Polarizing Filter
allows you to control the amount of light transmitted through to your
eye so you can tailor it to the brightness of the object you're looking
at—reducing the brightness and glare on celestial objects like the moon,
Venus, and even bright double stars.
This filter does not alter
the color of the object you're observing, making it a great choice for
astroimaging, especially when imaging the surface of the Moon. By
reducing the brightness, lunar details become more pronounced and
defined. This filter can also be used to darken the blue-sky background
when hunting for planets like Venus or Jupiter during daylight, making
the planet stand out from the background. Simply rotate the filter's
lower ring to adjust the light transmission from just 1% (blocking 99%
of incoming light) up to as much as 40%. Having this level of control
over the filtration allows you to precisely set it to a specific target
and current viewing conditions so you can get the best view possible.
Standard threads on both sides allow it to be installed on just about
any 1.25" eyepiece, and stacked with color or specialty filters to
further refine and enhance the viewing experience.
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