overexposure
    n 1: the act of exposing film to too much light or for too long
         a time
    2: the act of exposing someone excessively to an influencing
       experience; "an overexposure to violence on television"

Overexpose \O`ver*ex*pose"\, v. t.
   To expose excessively; specif. (Photog.), to subject (a plate
   or film) too long to the light used in producing a picture.
   -- O`ver*ex*po"sure, n.
   [Webster 1913 Suppl.]