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Canon PowerShot G1 X Review at Digital Photography Review
Richard Butler and Andy Westlake takes Canon's bulkycam for a ride:
"At high sensitivities the G1 X sets a new benchmark for compact cameras. You really only need to worry about noise and the effects of noise reduction at ISO 1600 and above where the Canon takes a quite heavy-handed approach towards both chroma and luminance noise. The end result are very clean pictures with slightly smeared low contrast detail.
The latter is only really visible at large magnifications and easily rectified with some custom noise reduction in raw conversion. In any case the G1 X's high ISO performance is among the best we've seen from APS-C (or similarly sized sensor) cameras. That said, the G1 X's advantage in terms of sensor and imaging pipeline performance is at least partly offset by its slow lens. Other premium compact cameras, such as the Olympus XZ-1 or the Fujifilm X10, have smaller sensors but can, thanks to their fast lenses, stick to lower ISOs in dim lighting conditions."
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