"they" *do not* provide "an output file of 2000X3000
pixels, each one being a 24 bit color", at least not in the raw file format. canon's raw file is a (losslessly) compressed 12 (or 10) bits of data, one color only, per pixel. the rest is interpolated afterwards.
mishka
do the math, to get an output file of 2000X3000 pixels, each one being a 24 bit color, you need 24Msensors, 4 for each pixel. JCO