Hasselblad makes a 50 MP digital back for their film cameras,
and produces a 32 MP stand-alone digital camera.
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Some good digital concepts cameras include the Digital Concepts
4.1 MP and the Digital Concepts 3.1 MP with Camcorder. You can
purchase these items online from the Amazon website.
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You should consider the HP PW550 12.2 MP Digital and the HP
SW350A Black 12.1 MP. Both are very good cameras.
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Its a digital audio or video file. It is sometimes called Mp for
short.