This figure shows images acquired through each of the eight
filters in the filter wheel of the 34-millimeter-focal-length
Mast Camera (Mastcam-34) on the Mars rover Curiosity. The image
in the upper left was taken through a clear filter and shows the
color that can be recreated from the Bayer color filter array on
the detector. This color capability is essentially identical to
that of consumer digital cameras. The other images show how the
camera can take narrow wavelength (about 20 to 25 namometers
wide) exposures through a variety of filters to build up a
multispectral view. The filters in the near-visible infra red
appear grey because the Bayer color array is essentially equally
sensitive to those wavelengths. The apparently blank gray image
is a neutral density filter that attenuates sunlight to one one-
thousandth of its natural intensity, so will look dark except
when viewing the sun. Malin Space Science Systems, San Diego,
built MastCam and two other cameras on Curiosity. NASA's Jet
Propulsion Laborator