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**poulaMahmah** · 12-23-2008, 08:45 AM

No idea about Nikon cameras (though I'd imagine it'd be the same as sony since they make Nikon's sensors) but Sony's 12mp CMOS a700 has undeniably better ISO performance then the 10mp CCD a200/a300 sensor.

absolutely

just like i said and you are repeating now

different approaches in sensor making have different results. they have their benefits and short comings.

just like you said a CMOS might give better high iso performance (not always true tho) then CCD sensors of sony. and also a normal CCD will have worse high iso performance then superCCD (which is fuji films sensor type). these are different approaches which has their benefits and shortcomings. like having color artifacts with superCCD, or having great saturation with regular CCD sensors or having great high iso performance with CMOS etc etc. given the same sensors. like, take a CCD sensor from sony. bump it up from 6 to 14mpixel it will start struggiling with artifacts like luminance noise. solution instead of making a700 with the same ccd sensor as a200 use cmos. OR if you want better performance bump the sensor size to full frame. same goes for canon cameras. and sigma cameras and fuji cameras.

if that wasn't true, "like just bumping the megapixel was enough" there would absolutely be no need for full frame sensors. and canon or sony or nikon wouldnt bother but just improve their existing sensor and pack more photosites

anyway. bigger photosites in most cases (with exception of superccd's untill they reach aps-c size) give better iso performance so megapixels wont hugely improve iso or per pixel detail and in lots of cases and will make things even a little worse.

12-23-2008, 08:45 AM	#22
poulaMahmah Join Date Oct 2005 Posts 478 Senior Member	No idea about Nikon cameras (though I'd imagine it'd be the same as sony since they make Nikon's sensors) but Sony's 12mp CMOS a700 has undeniably better ISO performance then the 10mp CCD a200/a300 sensor. absolutely just like i said and you are repeating now different approaches in sensor making have different results. they have their benefits and short comings. just like you said a CMOS might give better high iso performance (not always true tho) then CCD sensors of sony. and also a normal CCD will have worse high iso performance then superCCD (which is fuji films sensor type). these are different approaches which has their benefits and shortcomings. like having color artifacts with superCCD, or having great saturation with regular CCD sensors or having great high iso performance with CMOS etc etc. given the same sensors. like, take a CCD sensor from sony. bump it up from 6 to 14mpixel it will start struggiling with artifacts like luminance noise. solution instead of making a700 with the same ccd sensor as a200 use cmos. OR if you want better performance bump the sensor size to full frame. same goes for canon cameras. and sigma cameras and fuji cameras. if that wasn't true, "like just bumping the megapixel was enough" there would absolutely be no need for full frame sensors. and canon or sony or nikon wouldnt bother but just improve their existing sensor and pack more photosites anyway. bigger photosites in most cases (with exception of superccd's untill they reach aps-c size) give better iso performance so megapixels wont hugely improve iso or per pixel detail and in lots of cases and will make things even a little worse.
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