i saw an article online (http://www.clarkvision.com/articles/...l.1/index.html) providing a mathmatical formula for determining that the resolution of 4x5 velvia equals or exceeds that of digital capture capable of 150-200mp. the wikipedia entry backs this up (http://en.wikipedia.org/wiki/Digital...m_photography).
"A medium format film image can record an equivalent of approximately 50 megapixels, while large format films can record around 200 megapixels (4 × 5 inch) which equates to around 800 megapixels on the largest common film format, 8 × 10 inches, without accounting for lens sharpness. A medium format DSLR provides from 42 to 50 megapixels, but cannot be enlarged with the same level of detail as medium format film"
but i also have read a luminous landscape review where 4x5 was supposedly "bettered" by phase one's p45+ (39mp). (http://www.luminous-landscape.com/essays/Cramer.shtml)
if someone could explain this disparity i would appreciate it. i use a phase one system but stick to LF for my personal work because i do feel it holds more information (yet i cannot explain why at the technical level).
thanks!
dm
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