Upon detection of the attachment of a recording medium, an image signal obtained by taking a picture and condition information representing a condition in which the picture is taken are read out from a memory in an image pickup apparatus and recorded on the recording medium. The apparatus is also arranged in such a manner that the condition information recorded on the recording medium may be transferred to the memory. With this arrangement, it becomes possible to process the image signal by using the condition information stored in the memory, even in a situation in which the recording medium is detached. Furthermore, it becomes possible to inherit the condition information even when the recording medium is exchanged.