Sometimes you may want to create a custom White Balance before starting to capture images rather than trusting to Auto White Balance and correcting in Post.
With Sony Alpha cameras this is a relatively simple affair. Get up to speed by watching this short movie tutorial. The White Balance reference used in this movie is a ColorChecker Passport made by X-Rite.
One of the subject’s covered by my one-on-one training sessions and workshops is how to customise the menus of either your DSLR or Mirrorless Camera.