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The Advanced Camera for Surveys (ACS) is a camera installed on the Hubble Space Telescope, operating from 2002 to the present day.
The ACS was installed on Hubble during servicing mission 3B in March 2002, replacing the Faint Object Camera. Consisting of three cameras, the ACS
is providing an unparalleled view of the Universe. The most widely used camera consists of two CCDs, Charge Coupled Devices, having a total of
16 Million pixels, which can be used with over a dozen different filters to isolate different colors ranging from the blue, through optical, to the near infra-red.
A second camera with 1 Million pixels provides the highest spatial resolution currently available on HST, while the third camera operates in the
far Ultraviolet.
The ACS has twice the field of view and a higher sensitivity than the older main camera, the Wide Field and Planetary Camera 2, which is still in operation.
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