All effects and presets

Effect

Lens Distortion

Barrel or pincushion lens warp with chromatic fringe options.

Real lenses bend the field: barrel distortion swells the centre, pincushion pinches it. Wide primes and anamorphics add their own signatures, often with chromatic fringe at high-contrast edges.

This effect stages those optical habits. Use them for realism or for a deliberately warped frame.

Lens Distortion example
Example

Properties

  • Strength

    positive barrel

    Range
    -1 to 1
    Default
    0.35

  • Higher order

    r^4 coefficient for stronger edge bend

    Range
    -1 to 1
    Default
    0.15

  • Zoom

    compensate crop after distortion

    Range
    0.5 to 1.5
    Default
    1

  • Center

    Range
    -1, -1 to 1, 1
    Default
    0, 0

  • Chromatic

    RGB split along the distortion

    Range
    0 to 1
    Default
    0

Command line

Requires Rethings Pro. Install the tool from Rethings → Install Command Line Tool… 

rethings apply --effect lens-distortion --set strength=0.35 --set k2=0.15 -i input.jpg -o output.png

Gallery

  • Lens Distortion example 1
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