The EOS 50D features a newly-designed
15.1-megapixel APS-C sized CMOS sensor which is capable of recording up to 4752
x 3168 pixels with full 14-bit A/D conversion for extremely fine tonal
gradation. Ready to capture images in an instant, the sensor is designed to work
with Canon's EF and EF-S lenses with a conversion factor of 1.6x. It's capable
of recording at sensitivities previously too noisy for shooting in low light or
subjects in motion. With a maximum ISO rating of 12800 combined with a 4-level
High ISO speed noise reduction function, images that would have been impossible
without the use of a strobe or flash become simple to record.

15.1 Megapixel APS-C Size CMOS Sensor