White Light Tints (IMAGE) Optica Caption A new study reveals that age can affect the perceived tint of white light. This photo shows a very large difference in tint between different spots, which is representative of what the researchers found in the study. Though not representative of what all observe, viewers of different ages disagree on which of these sources appears "most white" when compared to a reference source (here, the digital camera taking the photo selected the third spot for white balance). Credit Soraa Inc., Freemont, Calif., USA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.