Using an Expo Disc to Set your White Balance So, you have this great camera and you are working in the manual mode because you are a professional, right, that’s what sets you different from the others (a few other things set you apart too, but we can’t get into all that right now!)…. Then you start noticing that the photos you are taking have this tint of yellow, amber glow, or bluish color flooding all over your images! yikes,…