on 2012-04-22 14:03 P. J. Alling wrote
A 24mp sensor gives a liner dpi improvement in a 13x19in print of lets see,
(carry the one divide by 19), 50 dpi. For that I expect that a raw file will be
roughly four times the size of a K-5 file and 90% of the time the improvement
imperceptible at a normal viewing distance. It's worse if you view your images
on a computer screen.
weird math
a 24 megapixel image file, given the same effective compression, would be just
under 1.5 times the size of a 16.3 megapixel K-5 file
the linear improvement should be sqrt(1.5) or about 22% improvement assuming
the sensors are proportioned the same; to express this as dpi, start with the
K-5's output of 259 ppi across the 19 inch output size you mention (4928/19); a
24mp sensor of the same proportions would give you 318 ppi, or 59 greater "dpi"
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