New 15.1-megapixel CMOS sensor with DIGIC 4 Image Processor: Canons CMOS (complementary metal oxide semiconductor) sensor captures images with exceptional clarity and tonal range and offers the most pixels in its class. It offers many of the same new technologies as used by Canons professional cameras to maximize each pixels light gathering efficiency. Its APS-C size sensor creates an effective 1.6x field of view (compared to 35mm format). Canons DIGIC 4 Image Processor dramatically speeds up all camera operations for intuitive operation and offers improvements in both fine detail and natural color reproduction. It works in concert with the EOS Rebel T1is image sensor to achieve unprecedented levels of performance in all lighting situations.