Benefits
of the plug-in

Remove transverse chromatic aberration.
Remove longitudinal chromatic aberration.

The Chromatic Aberration plug-in works with these image modes (Windows and Mac)...
8 & 16 bit / channel: RGB, CMYK.

The control panel

This is the Chromatic Aberration plug-ins control panel (Windows). Click the image to enlarge. The control panel and preview area can be changed by dragging the sides.

The filter has two controlgroups:

1. Transverse chromatic aberration
2. Longitudinal chromatic aberration

Example -

Before and after removing chromatic aberration

The plug-ins two control groups

Fringes

Transverse

The most common chromatic aberration is the colored fringe that becomes more and more prominent as you move from the centre to the corner of the image. This is known as transverse aberration.

The first three controls fix this for each colorchannel.

Focus

Longitudinal

A less common aberration is when the colors do not focus evenly on the image sensor. This is known as longitudinal aberration.

Example - transverse

In this example we see the corner of a large image with transverse chromatic aberration.
(Camera = Canon PowerShot G9)

Color fringe or chromatic aberration?

Purple fringe

Colorfringes occur when photographing a dark object against a bright lit background and they are usually purple. They are not regularly distributed over the image and are larger and more specular than cromatic aberration.

Unfortunately cromatic aberration and purple fringes often appear together as in this example.

The technology needed to correct a purple fringe is different and more complex than the fairly simple technology needed to remove chromatic aberration. Therefore we have a plug-in dedicated to color fringes and one to chromatic aberration.