To attain optimal photography easily by identifying an object in a field, obtaining the photography parameters by compounding a plurality of initial photographic parameters of the object, and then calculating and determining the optimal photographic parameters dynamically according to the field.

An image pickup device comprises a means for photographing the field, a means for identifying an object included in the field from an image photographed by the means for photographing the field, and a means for dynamically calculating and determining photographic parameters for use in photography by the means for photographing the field, by compositing the initial photographic parameters in a small region, including the center of each object identified by the means for identifying an object.