jcolwell wrote: Mike K wrote: Richard Nye wrote:
A 36mp sensor would seriously challenge the current lens performance.
The current 18 mp APS-C sensors of Canon have a much higher pixel density.
Not really. My math shows the 18MPx APS-C sensor has a pixel density of 232 pixels-per-mm (ppmm). A 36 MPx full frame sensor (36mm x 24 mm) would have a pixel density of 209 ppmm. That\'s not quite as high as the APS-C sensor, but it\'s pretty close (11%). I suspect that a 209 ppmm FF sensor will show a lot more lens warts (larts) in the corner of a FF image than a 232 ppmm APS-C sensor will show in the corner of an APS-C image. YMMV.
Richard,
I am not understanding your math.
for APS C 18,000,000 pixels / 22.3mm X 14.9mm = 55,286 pixels/mm2
for FF 36,000,000 pixels / 36 mm X 24 mm = 41,667 pixels /mm2
Thus the pixel density of the 18mp APS C sensor is 55286 / 41667 = 1.33 more dense than that of the 36mp FF sensor.
Feb 04, 2012 at 08:35 PM
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