12.2 Megapixel CMOS sensor Canon’s EOS Integrated Cleaning System 3.5 frames per second 3.0” LCD with Live View shooting 9-point wide-area AF system with f/2.8 cross-type centre point Picture Style image processing parameters DIGIC III image processor Digital Photo Professional RAW processing software1 Compact and Lightweight body Fully compatible with all Canon EF and EF-S lenses and EX-series Speedlites
* SD/SDHC cards * Larger viewfinder * Live view mode, including contrast-detect AF (終於, 歡迎進入銅器時代) * Spot metering (終於到了人人有點測, 家家慶歡騰的時代了) * 14 bit A/D converter and processing * Highlight Tone Priority (from 40D) * Auto Lighting Optimiser (boosts shadows after shooting)
其他的功能我覺得只是基本更新: * Improved 9-point AF system * 3.0" LCD monitor * Redesigned menus (including My Menu as seen in 40D) * Slightly redesigned info display * Continuous shooting at 3.5fps for up to 53 JPEG (6 RAW) * ISO setting displays in viewfinder and ISO button * New, larger, higher capacity battery * Multi-shot self-timer mode