An image reading apparatus and method in which no complicated control is carried
out and suitable adjustment of the color balance can be carried out in accordance
with the type of a photographic material. First, the type of a photographic film
to be read is acquired. When the photographic film is a negative film or a sepia-tone
film, a filter for negative film is set on an optical axis of illumination light.
When the photographic film is a positive film or a black-and-white film, a filter
for positive film is set on the optical axis of illumination light. In either state,
a film image on the photographic film is read.