An APS single use camera has a cover with an aperture that provides access
to the film sensor and the light lock door driver via a tool adapted to be
received into the aperture. The tool is used to open the light lock door
and push the film sensor out of the film path so as to enable film from
the APS film cassette to be scrolled into the film path. The structure
permits pre-loading of film outside of a darkroom, and such a method is
disclosed. The camera also employs a brake that prevents the film sensor
from sensing for the presence or absence of film except during a brief
sensing interval that occurs during a film advance operation.