1. An imaging apparatus for recording captured images, comprising: a plurality of connector units for connecting removable storage medium, respectively; a first storage medium that is connected to a first connector unit among the plurality of connector-units and stores a plurality of image data as an object of image retrieval; a second storage medium that is connected to a second connector unit among the plurality of connector units and stores key image data as a retrieve condition that was generated independently from the image data; and a retrieval unit that retrieves image data from the first storage medium that is similar to the key image data read from the second storage medium.