Compared to... Canon EOS Rebel XS (1000D)

Here is the comparison at ISO 400 between the G10 and 1000D

Note: the G10 shots were taken from a slightly higher position than the 1000D shots.

Studio scene comparison (@ ISO 400)

  • Canon PowerShot G10: Aperture Priority mode, ISO 400, Default Image Parameters,
    Manual white balance, +0.67 EV compensation

  • Canon 1000D: Canon 50 mm F1.4 lens, Aperture Priority, ISO 400
    JPEG Large/Fine, Manual WB, Default Parameters (Standard), Self-Timer
  • Lighting: Daylight simulation, >98% CRI
Canon PowerShot G10
Canon EOS 1000D
ISO 400, 1/320 sec, F4
ISO 400, 1/100 sec, F9
5,794 KB JPEG
3,838 KB JPEG

The 1000D’s ISO 400 shot looks almost the same as the ISO 100 image in terms of detail and ISO noise, whereas the G10, whilst good, has lost quite a bit of fine detail and has increased noise. This is the point at which the larger sensor size in the 1000D is showing benefits. The G10 image is certainly still very usable, but for the same (or similar) money, there is much better image quality available, and it’s no replacement for a digital SLR.