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Sony DT 11-18mm vs DT 18-70mm purple fringing comparison
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To compare the purple fringing of the Sony DT 11-18mm against the DT 18-70mm, we photographed a test chart with areas of very high contrast using each lens at their shortest and longest focal lengths and
with their apertures wide open. The crops are taken
from the upper left corner of the chart and presented here at 100%.
Both lenses exhibit purple fringing at their shortest focal lengths, although the DT 11-18mm shows a much better result when zoomed-in - also compare this to the DT 18-70mm at 18mm. |
Sony DT 11-18mm
Using Sony Alpha A100 |
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Sony DT 18-70mm
Using Sony Alpha A100 |
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11-18mm at 11mm f4.5 |
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11-18mm at 18mm f5.6 |
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18-70mm at 18mm f3.5 |
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18-70mm at 70mm f5.6 |
Sony DT 11-18mm vs DT 18-70mm macro comparison
| To compare the macro capabilities of the Sony DT 11-18mm against the DT 18-70mm, we photographed
a custom chart at a focal length and distance which
delivered the maximum possible reproduction.
The dark lines are 10mm apart and the result is not cropped. Smaller areas
are preferred in this test. |
Sony DT 11-18mm
Using Sony Alpha A100 |
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Sony DT 18-70mm
Using Sony Alpha A100 |
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11-18mm at 18mm f8
Max area of 168x112mm |
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18-70mm at 70mm f8
Max area of 82x54mm |
| The DT 11-18mm can certainly focus quite close to its subjects, but even zoomed-into 18mm, you're not going to get a massive reproduction. The best result we managed was an area of 168x112mm. If you want better close-up reproduction on your Alpha, get a dedicated macro lens. Next up are our Sony DT 11-18mm distortion results. |
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