Canon EOS-350D / Digital Rebel XT purple fringing comparison
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To measure purple fringing caused
by lens chromatic aberrations and sensor blooming, we photographed a custom
test chart, left, with areas of very high contrast. We used the bundled
lenses at their widest and longest focal lengths with the aperture wide
open in Aperture Priority mode. The crops are taken from the upper left
corner of the chart and presented here at 100%.
The 350D with the 18-55mm EF-S lens exhibits purple fringing at its widest
position, but no worse than its rivals. Fringing is virtually absent at
the 55mm end, again in line with the competition. |
Canon EOS-350D |
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Konica Minolta Dynax 5D |
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Nikon D50 |
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Pentax *istDL |
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18-55mm EF-S at 18mm f3.5 |
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18-70mm DT at 18mm f3.5 |
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18-55mm DX at 18mm f3.5 |
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18-55mm DA at 18mm f3.5 |
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18-55mm EF-S at 55mm f5.6 |
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18-70mm DT at 70mm f5.6 |
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18-55mm DX at 55mm f5.6 |
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18-55mm DA at 55mm f5.6 |
Canon EOS-350D / Digital Rebel XT macro comparison
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To measure macro performance we
photographed a custom chart using the bundled lenses at a distance and focal
length which delivered the maximum possible reproduction. The dark lines
are 10mm apart.
The image left was taken with the Canon EOS-350D and the 18-55mm EF-S lens
at f8. Like other budget digital SLR lenses, the best macro performance
was achieved using its longest focal length of 55mm. Here the lens captured
an area measuring 66x44mm from a distance of 13cm. This is essentially the
same as the competition, although superior to Konica Minolta. |
Konica Minolta Dynax 5D |
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Nikon D50 |
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Pentax *istDL |
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18-70mm DT at 70mm f8
Max area of 82x54mm at 20.5cm |
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18-55mm DX at 55mm f8
Max area of 70x49mm at 13cm |
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18-55mm DA at 55mm f8
Max area of 66x44mm at 12cm |
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