Equipment# Astronomy - 天文
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Filters can be used to enhance your telescope viewing experience. Their
fundamental purpose is to selectively reduce the amount of light reaching your
eye, or the camera. The difference they make is often subtle, but for specific
types of observing they can be essential.
There are several main types of filters used for telescopic observation, each
with a different application:
Broadband Light-Pollution Filters
These high-tech filters are designed to improve observing in light-polluted
areas. The
fundamental purpose is to selectively reduce the amount of light reaching your
eye, or the camera. The difference they make is often subtle, but for specific
types of observing they can be essential.
There are several main types of filters used for telescopic observation, each
with a different application:
Broadband Light-Pollution Filters
These high-tech filters are designed to improve observing in light-polluted
areas. The