Upload & Sell: Off
| p.1 #3 · Tips for removing lens flares? |
It may sound a bit trite but prevention is far easier than cure. Use a suitable lens hood always.
Lens flare often involves differences in colour as well as tone and it is very difficult to separate them from the scene. However, if it is a simple veiling flare then increasing microcontrast (or "clarity") may be sufficient. As Peter suggested, you'll get better help if you post an example.