Purple flare: Causes and remedies

Started Mar 1, 2013 | Discussions thread
OP Anders W Forum Pro • Posts: 21,466
Re: Purple flare: Causes and remedies

s_grins wrote:

In my understanding, it is not a particular lens, but all wide lenses with aspheric element are prone to purple flare. Aspheric element works like a Fresnel prism that splits light spectrum more aggressively than normal spherical glass. Red light with longer wave length refracts more than blue light.

Interesting idea. But in this case I used a short tele (45/1.8) without any aspheric elements.

How to fight this purple flare? As others said: use lens hood.

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