Noise

The SX10 IS' photo stay relatively sharp and noise free through ISO 200. At ISO 400, a bit of blurring kicks in and by ISO 800 you lose most small details and start to see some mottling. Overall, however, the SX10's photos do visibly improve over the S5 IS.
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Photo by: Matthew Fitzgerald/CNET / Caption by:

Noise: S5 IS vs. SX10 IS

It's kind of interesting to look at the difference in noise reduction between the SX10 IS (left) and S5 IS. This is a 100 percent crop from the blue channel of the ISO 1,600 images from both (I boosted the gamma for better visibility). You can see the hard-edged, blobby artifacts of Digic III gives way to the streaky lines of Digic 4.
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Photo by: Lori Grunin/CNET / Caption by:

Distortion

At its widest angle of 28mm equivalent, the SX10 IS' lens displays quite a bit of asymmetrical barrel distortion. It's pretty typical for wide-angle megazoom cameras, however.
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Photo by: Lori Grunin/CNET / Caption by:

Fringing

In an improvement over previous lenses, the SX10 IS shows some fringing from the lens distortion (left and right insets), but not nearly as bad as it's been in the past. Because of its relatively low resolution, there is some muddying up of background details, like the net over the door's facade (middle inset). (ISO 80, f3.2, 1/80 sec, 28mm equivalent)
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Photo by: Lori Grunin/CNET / Caption by:

Sharpness

As with many cameras, the SX10 IS seems sharpest in its Super Macro mode (macro fixed at 28mm equivalent). Here you can see that the sharpness also holds up pretty well at ISO 200. (f2.8, 1/50 sec, ISO 200)
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Photo by: Lori Grunin/CNET / Caption by:

Sharpness

Canon hasn't entirely fixed the tendency for the megazoom images to look alternately crunchily oversharp and diffuse, overall they're pretty good. (ISO 80, 1/100 sec, f3.2, 28mm equivalent in Super Macro mode)
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Photo by: Lori Grunin/CNET / Caption by:
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