By using a white balance card and the advanced white balance controls found in FiLMiC Pro you can save yourself a lot of hassle in post.
White Balance Cards Featured in this Tutorial
A tissue (seriously)
FiLMiC Pro White Balance Tips
Tip #1: Zoom in digitally on your white balance card so it fills the frame. Smartphones analyse the whole frame, not a specific point. Then lock your WB and zoom all the way back out.
Tip #2: To avoid white balance fluctuation in FiLMiC Pro try our new ‘auto lock white balance on record’ mode. We have a full tutorial available here.
Tip #3: Remember you can save a custom white balance preset to the ‘A’ and ‘B’ user preset buttons in FiLMiC Pro. Just dial in your white balance, then long press either button! This makes recalling a custom white balance preset a one tap process.