Outstanding Image Quality: New Canon 12.2-megapixel CMOS sensor, DIGIC III Image Processor, 14-bit conversion for smooth tone, gradations, extensive noise reduction technology and new Auto Optimization for superior highlight-shadow control 14-bit A/D Converter: With the EOS Rebel XSi, analog to digital signal conversion is executed by a 14-bit processor, which generates digital data with incredibly smooth tones Auto Optimization: The EOS Rebel XSi's Auto Optimization is yet another image-quality tool that comes to the rescue in tricky lighting conditions. It can actually lighten dark areas of a scene while ensuring that bright areas maintain tonal detail DIGIC III Image Processor: Developed to maximize performance between the capture and recording stages of digital photography, the EOS Rebel XSi's latest-generation DIGIC III Image Processor works in concert with Canon's CMOS sensor to achieve even higher levels of performance Excellent performance with 3.5 fps continuous shooting, up to 53 full-resolution JPEGs or 6 RAW images in a burst and reduced shutter lag time: The EOS Rebel XSi operates with such effortless speed that operation is nothing short of intuitive