Canon EOS-350D / Digital Rebel XT corner sharpness comparison
To measure corner sharpness we photographed
the standard ISO 12233 test chart with each camera set to its best quality
JPEG settings. We used the bundled lenses at their widest and longest focal
lengths with various apertures in Aperture Priority mode. The crops are
taken from the lower left corner of the chart and presented here at 100%.
The 18-55mm EF-S at 18mm f3.5 is slightly soft, but sharper than its rivals,
and acceptable once closed by a few stops. At 55mm the lens performs similarly
to the competition, although again the best results are when closed by two
or more stops.
