Purple Fringing - Mitigations

Mitigations

Commonly advocated methods of avoiding purple fringing include:

• Avoid shooting with a wide-open lens in high contrast scenes.
• Avoid overexposing highlights (e.g. specular reflections and bright sky behind dark objects).
• Shoot with a Haze-2A or other strong UV-cut filter.

Post-processing to remove purple fringing (or chromatic aberration in general) usually involves scaling the fringed colour channel, or subtracting some of a scaled version of the blue channel, or other blue-channel tricks.