The Effect of Lighting and Photograph Exposure on Perceived Attractiveness

Abstract

Purpose: To assess the effect of various lighting conditions and photograph exposures on perceived attractiveness.

Methods: In the first experiment, 5 variably exposed photographs were taken of 10 subjects using a consistent lighting condition (45° superior box light). In the second experiment, 10 subjects were photographed under variable lighting conditions with consistent exposure: 1) 90° overhead box light, 2) ring light, 3) 45° superior box light, 4) built-in camera flash, 5) 2 straight on box lights, each 45° from midline, and 6) natural light. Participants were instructed to maintain a neutral expression, were placed in front of a standardized blue-gray background, and were photographed during a single session. Photographs were imported into an online survey platform (Qualtrics 2020) and displayed in random order. Volunteer survey respondents were instructed to rate the subject's attractiveness on a scale of 0 to 10. Between the two experiments, a total of 22,000 scored photographs were included in the analysis. Mixed ANOVA and pairwise comparisons with Bonferroni correction were used to compare between- and within-subject ratings.

Results: Lighting condition had a significant impact on perceived attractiveness ( p < 0.001), with the 90° overhead box light achieving lower scores and the 45° superior box light yielding greater scores of attractiveness relative to the other conditions. Photograph exposure did not have a significant impact on subjective attractiveness ( p = 1.000).

Conclusions: Our findings suggest that perceived attractiveness is enhanced when a 45° superior box light is used for illumination, and attractiveness is reduced when 90° overhead exposure is utilized. Exposure did not play a prominent role in perceived attractiveness.