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High ISO studio comparison

As is now pretty much the norm the SD800 offers a couple of higher ISO settings (in this case ISO 800 and ISO 1600). Below you'll find studio comparison shots taken at ISO 800 and 1600.

Studio scene comparison (@ ISO 800 & 1600)

  • Canon SD800 IS (IXUS 850 IS): Program mode, ISO 800 , Default Image Parameters,
    Manual white balance, +0.67 EV compensation
     
  • Canon SD800 IS (IXUS 850 IS): Program mode, ISO 1600 , Default Image Parameters,
    Manual white balance, +0.67 EV compensation
     
  • Lighting: Daylight simulation, >98% CRI
Canon SD 800 IS (IXUS 850 IS)
Canon SD 800 IS (IXUS 850 IS)
ISO 800, 1/640 sec, F4.5
ISO 1600, 1/250 sec, F11
2,987 KB JPEG
3,122 KB JPEG

Although there is a significant loss of fine detail (you wouldn't want to use these settings for anything important), the ISO 800 result is perfectly usable for social snapping in low light (as long as you're not intending to attempt big enlargements from it). We found that in low light ISO 800 was very noisy despite the strong noise reduction, and that ISO 1600 is all but unusable.

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