Do you have an annoying colorcast caused by mixed lighting or a bad camera setting? Be sure to take advantage of the custom White Balance Tool. You’ll find it in the RAW Develop and Develop filters.
1. Click the Eyedropper to select the White Balance Tool.
2. Now mouse over your image and find an area that should either be white or a neutral gray.
3. Click, and a new white balance is set for you. The temperature and tint sliders will adjust to try and neutralize any color cast issues and give you the most accurate white balance.