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My question is simple why are they always black and white? Is it because of the signal strength or some other reason that makes it impossible or impractical of taking colored photos??
My question is simple why are they always black and white? Is it because of the signal strength or some other reason that makes it impossible or impractical of taking colored photos??
they are not always black and white.
it depends if the camera is monochromatic or colour.
on a space craft the ccd chip of a camera will often be monochromatic because that gives you far superior resolution than the same size colour chip would give you. obviously you want your picture to have the very best resolution possible.
you can still take colour images (with a mono ccd camera) if you take a luminance image followed by an image with a red, blue and green filter.
we have thousands of colour pictures from other planets (using this method), but the fly by pictures often are only black and white because you dont have a static subject to take a series of pictures of.
sometimes you even see colour flyby images but that is done in post image processing. it will often just be a representation of colour rather than true colour...it just depends on how they got the colour spectrum info.
but the answer to the question as to why you use mono camera is because it gives the best resolution possible for chip size
