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Re: Problems with close up's
The blue outline is chromatic abboration (bet I've spelt that wrong) and is often found at the borders of high contrast areas, typically where you get trees against pale sky. Some lenses are worse than others in producing this effect, although I believe that even the aparture setting will also have a bearing on if or how much the effect is apparent.
In this example, I think it is probably caused by the quality of the extra glass in front of the lens, but it might be worth playing around with different settings to see if there is a level that you can live with.
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Graham
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