On 4/20/2012 05:13, John Sessoms wrote:
That math is so simple, even I can do it.
A 135mm film frame is 24x36 mm. Convert to inches & you get 0.94 x 1.42
Scan @ 4,000 dpi = 3760 x 5680 = 21,356,800
Divide twice by 1024 gives 20.37 MP
I chose 4,000 dpi because that's what Nikon said the Coolscan 9000 could
do.
John what easily follows from your math, that the likes of K-5 or this
news 24 MP offering from Nikon (likely built after 24 MP Sony sensor)
has actually smaller pixels than the above scan. It is because of the
crop factor.
But, I wonder who really would produce a work worthy of an enlargement
suitable for so many pixels? It seems that I am pretty content with my
K-5en.
Boris
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