Test Results
In keeping with our standard policy, our comments here are rather condensed, summarizing
our key findings: For a full commentary on each of the test images, see the
S10's "pictures" page.
As with all Imaging Resource camera tests, we encourage you to let your own eyes
be the judge of how well the devices performed: Explore the images on the pictures
page, to see how well the S10 performed, and how its images compare to other cameras
you may be considering buying.
Overall, we were extremely impressed with the quality of the images produced by
the S10. In truth, we rather expected to find that the lens had limitations or
excessive distortion, given the tiny body it's crammed into: Surely there would
be compromises made in this respect. (We really had no basis for this belief,
as we haven't seen any evidence of such compromises in other tiny cameras we've
tested, whether from Canon or others. Still, the thought was there.) We were amazed
then, to find that the S10 produced photos that are easily in the top tier of
current 2 megapixel camera offerings. (November, 1999) Resolution and detail were
tack-sharp, and color was excellent as well.
In the resolution test, the S10 tested out at a solid 700 lines per picture height
in both horizontal and vertical directions. Even at very high spatial frequencies,
there's virtually no aliasing. The lens shows relatively little geometric distortion
throughout its zoom range, running from 0.5% barrel distortion at the wide angle
end to 0.3% barrel distortion in telephoto. Chromatic aberration was slight, estimated
at ~0.5 pixel (0.03%.
Perhaps our biggest complaint about the camera is that its optical viewfinder
is quite "loose", showing only 77% of the final image area across the
full range of the zoom lens. This is less accurate than most cameras we've tested,
but the LCD viewfinder compensates somewhat, by being a bit more accurate than
most, ranging from about 102% of final view at wide angle(?!) to 95% at telephoto.
In Macro mode, the S10 acquits itself well, providing a minimum capture area only
2.0 x 2.7 inches (51 x 68 mm), at a working distance of about 4.7 inches (12 cm).
This doesn't reach the microscopic levels of some recent cameras, but is well
in the mainstream of the present market.
Image quality was exceptional overall: Sharpness and resolution are clearly in
the top tier of the current (November, 1999) 2 megapixel market, and color is
really excellent as well. The only (minor) weakness we could find anywhere was
somewhat lower color saturation in blues and greens. Image noise is very low with
default ISO setting (ISO 100), and increases relatively gradually as the ISO is
boosted to 200 and 400. Low light performance was modest though, as the boosted
ISO ratings appear to only provide shorter shutter times, not lower working light
levels. Still, the approximately 1 foot-candle (11 lux) minimum usable light level
is perfectly adequate for capturing images in dim interior settings, or outdoors
at night under typical street lighting.
While it probably doesn't need to be said again, we were very impressed with S10's
picture quality, particularly given its diminutive size. Conclusion
The exceptional take-anywhere compactness and rugged construction of the PowerShot
S10 make it an imposing competitor on the digicam playing field. The four capture
modes give you a nice range of options and versatility and you have reasonable
exposure control as well. Combine that with resolution and image quality at the
top of the market for two megapixel digicams (as of November 1999), and you have
an excellent digicam that we anticipate will do very well with consumers. Other
than adding a longer-ratio zoom lens or a more accurate optical viewfinder, it's
hard to find any way in which the S10 could be improved!