http://www.dpreview.com/news/1002/10020806canoneos550d.asp

* 18 Megapixel APS-C CMOS sensor
* DIGIC 4 processor with ISO 100-6400 (Expansion to 12800)
* Continuous shooting at 3.7fps
* Full HD movie recording with manual control and selectable frame rates
* 7.7cm (3.0”) 3:2 Clear View LCD with 1,040k dots
* iFCL metering System with 63-zone Dual-layer Metering Sensor
* Quick Control screen to change shooting settings
* Exposure compensation +/-5 stops.
* Select maximum value for Auto ISO
* External Microphone socket
* Movie crop function
* Eye-Fi connected functions compatibility


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也到1800萬了...要用高相素，拉開跟其他廠的距離嗎？