Shadowy Daisy

Shadowy Daisy
by damned-truths

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a lens defect which causes straight lines to be curved or bowed

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0answers
188 views

How to disable automatic cropping that's done after distortion correction in DxO Optics Pro 9 or 10?

DxO uses so-called "modules" that apparently contain many lens parameters and they are implicitly used for correcting geometric distortion, and some other issues in pictures automatically. But the ...
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0answers
77 views

How do I set a lens profile for post-processing distortion correction with an inverted lens?

Recently I started having fun with macro and micro photography by inverting a lens I have (24-85mm) and by combining 2 lenses togheter (70-200mm + inverted 28mm). The results are good (I shoot in ...
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0answers
13 views

ImageMagick Distort Perspective around a rectangle, without affecting aspect ratio

I have an imperfectly aligned/distorted photograph against a repeating rectangular pattern background, where one can easily identify what should be straight lines, both horizontally and vertically. I'...