Dpreview tests the Canon Rebel T2i/EOS 550D

PROS

• Excellent detail and resolution (especially in raw mode)
• Lovely new LCD screen - the 3:2 format really makes a difference.
• Capable, flexible AF system in both phase-detection and live view modes
• High-spec video mode, including external microphone jack
• Highly intuitive operation, refined ergonomics
• Fast and responsive operation (although shooting in raw mode slows things down)
• Very reliable metering and white balance in most shooting situations
• Decent build quality for the price - no creaks
• Highlight Tone Priority works well, in both raw and JPEG mode.
• Excellent battery life for its class
• Acceptable - although not outstanding - image quality at highest ISO settings.
• Excellent supplied software suite - DPP is one of the best bundled raw converters around

CONS

• Auto Lighting Optimizer’s effect is subtle to the point of being unnoticeable
• No rear control dial (as found on higher-end Canon bodies)
• Entry-level ergonomics won’t suit everyone (the EOS 50D and 7D just feel nicer)
• No in-camera raw conversion option
• Slightly soft JPEG output at default settings (but this is far from unusual)
• Chroma noise takes a fairly big chunk out of resolution at ISO 12800 (but better than the 500D)
• AF assist strobe can be annoying

source:dpreview