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Olympus ZD 12-60mm wide-angle uniformity comparison
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To measure and compare the Olympus 12-60mm's
vignetting and light fall-off we photographed a white target with a
highly diffused custom filter using it and a number of rival lenses.
Here are the results for each lens set to their
widest focal lengths, with the aperture fully open and the focus set to infinity.
The images were analysed with Imatest and the full areas presented here
at a reduced resolution. Bigger percentages are better. |
12-60mm at 12mm f2.8
Mean corner fall-off: 85.4% |
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| The image above was taken with the Olympus 12-60mm lens zoomed-out to 12mm with its aperture wide open. Here the light falls off in the corners to an average of 85.4% of the centre
measurement. While a little darkening can be seen in the extreme corners, this is a very impressive result for a wide angle lens, comfortably beating the other lenses shown below, along with most models from rival manufacturers. An impressive result for the 12-60mm and the Four Thirds system. |
Olympus ZD ED 14-42mm
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Olympus ZD
14-45mm
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Leica D 14-50mm |
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14-42mm at 14mm f3.5
Mean corner fall-off: 63.6% |
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14-45mm at 14mm f3.5
Mean corner fall-off: 74.1% |
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14-50mm at 14mm f2.8
Mean corner fall-off: 66% |
Olympus ZD 12-60mm telephoto uniformity comparison
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|
To measure and compare the Olympus 12-60mm's
vignetting and light fall-off we photographed a white target with a
highly diffused custom filter using it and a number of rival lenses.
Here are the results for each lens set to their
longest focal lengths, with the aperture fully open and the focus set to infinity.
The images were analysed with Imatest and the full areas presented here
at a reduced resolution. Bigger percentages are better. |
12-60mm at 60mm f4
Mean corner fall-off: 95.7% |
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The image above was taken with the Olympus 12-60mm lens zoomed-in to 60mm with its aperture wide open. Here the light falls off in the corners to an average of 95.7% of the centre
measurement. Again while there's a little darkening in the extreme corners, this result essentially shows the 12-60mm performing almost perfectly in this test, beating the other models below - and again comfortably leading rival lenses. A great end to our formal tests with the 12-60mm delivering an excellent result when it comes to light fall-off, whether zoomed-out or zoomed-in. Now let's take a look at the lens in action in our 12-60mm sample images gallery. |
Olympus ZD ED 14-42mm
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Olympus ZD
14-45mm
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Leica D 14-50mm |
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14-42mm at 42mm f5.6
Mean corner fall-off: 85.7% |
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14-45mm at 45mm f5.6
Mean corner fall-off: 71.3% |
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14-50mm at 50mm f3.5
Mean corner fall-off: 72.5% |
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