The mid-rangeCanon EOS 50D raises image quality and high-speed image processing to next levels with advancements in two key devices: the developed approximately 15.1-million effective pixel CMOS sensor (APS-C size) and the redesigned high-performance DIGIC 4 imaging processor. Along with its enhanced image quality and rich tonal range, the model also utilizes noise-reduction technology to enable high-speed shooting.