Types of lens distortion
Below are examples of common types of lens distortion illustrating how they affect your composition.
Barrel distortion creates an image in which lines bow outwards towards the edges – making rectangles appear barrel-shaped.
Pincushion distortion makes lines appear to bend inwards towards the centre – making rectangles appear like the outlines of a pincushion.
Chromatic aberration (or achromatism) is usually seen through the colour fringing it creates on lines and edges in the image.
All lenses create an image that’s darker at the edges than in the centre – this is known as vignetting, and can be used as a stylistic device.
No lens distortion, where lines are as straight as in reality. There’s no darkening at the edges, and all the colours are focused at the same point.
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