http://www.dpreview.com/reviews/canong3/Conclusion - ProsExcellent resolution, one of the best performances of a four megapixel
Good metering, good tonal balance which maintains shadow detail
Good natural light white balance, strong and balanced colours
Control over cameras internal processing algorithms (saturation, tone, sharpness)
Low noise at ISO 50, not as clean at ISO 100, more sensitive than rated value
Good build quality, better overall design and control layout than the G2
Shooting priority play mode (a half-press of the shutter release always returns to shooting)
Excellent range of manual controls
Good shot-to-shot times, startup time compromised by four second lens extension
Superb fold-out and twist LCD, bright and assisted by anti-reflective coating
Manual focus has magnified loupe and ruler readout
Flexible continuous shooting modes (buffer after processing)
RAW file format maintains 12-bits of data
Ability to turn JPEG shot into RAW during record review
Compact Flash Type I or II and official Microdrive support
Flash hot-shoe, manual flash power, flash sync control (slow / curtain)
Voice annotation feature
Orientation sensor, although JPEG\'s are only tagged not rotated
Built-in ND filter useful for bright outdoor / flash shots
Intervalometer (time lapse)
Excellent night exposures, should allow exposures longer than 15 seconds
AF assist lamp works well
Included Infrared remote control
Superb battery life, the best we\'ve seen of any prosumer digital camera
Excellent included software suite including remote capture software with live viewfinder
Good accessory support (quality wide angle and telephoto lenses, chargers, case)
Conclusion - ConsSome chromatic aberrations at or around maximum aperture
Noise at ISO 100 worse than the competition
\'Shallow angle jaggies\' visible on resolution chart, although not yet seen in \'every day\' shots
Viewfinder partially obstructed by lens barrel
Control dial doesn\'t work well if rotated too quickly
Average macro performance
No nine-point AiAF as seen in the PowerShot S45
Zoom controller does not have enough steps / multiple zoom speed
Status panel is not backlit
Manual mode limits in relation to combinations of aperture and shutter speed (although better than the G2 and most other prosumer digital cameras)