If you take a Glossy magazine printing a 15" x 11" photo @ 300dpi you would need a 14 Mp camera to Produce a 42Mbyte uncompressed file.
If you take newsprint which typically uses a 120 dpi or less halftone.
A spread in a tabloid 22" x 14" will require a 51Mbyte uncompressed file.
A spread in the Berliner Format (Broadsheet replacement) 18" x 24" will require a 71Mbyte uncompressed file.
I can recall when visiting a customer ( an advertising agency ) the images for the A0 bus shelter adverts were about 350Mbytes.
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