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Compared to...

Below you will find a studio comparison between the Nikon Coolpix 7900 and the similarly specified Canon PowerShot SD500 at ISO 400.

Studio scene comparison (@ ISO 400)

  • Nikon Coolpix 7900: Program mode, ISO 400, Default Image Parameters,
    Manual white balance, +0.70 EV compensation
  • Canon PowerShot SD500: Program mode, ISO 400, Default Image Parameters,
    Manual white balance, +1.0 EV compensation
     
  • Lighting: Daylight simulation, >98% CRI
Nikon Coolpix 7900
Canon PowerShot SD500
ISO 400, 1/187 sec, F6.3
ISO 400, 1/636 sec, F4
2,569 KB JPEG
3,332 KB JPEG
Noise, std dev: 5.0
Noise, std dev: 3.1

At ISO 400 the situation is almost reversed - the SD500's stronger noise reduction has started to seriously affect overall sharpness, whereas the Nikon image - though noisier - has retained virtually all the detail (and actually looks sharper than the ISO 50 image: the 7900 uses dynamic 'auto sharpening' by default). In fact this is one of the better ISO 400 images we've seen from any camera using this latest generation 7MP chip. It's nice to see that Nikon's noise reduction system is removing chroma noise, leaving only grain-like luminance noise and lots of detail.

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