An imaging apparatus fetches an optical image of an object so as to produce an image signal, records on a recording medium an image signal corresponding to a still-image-use image size according to a still-image recording instruction, records on the recording medium an image signal corresponding to a moving-image-use image size according to a moving-image recording instruction, repeatedly creates the image signal and causes a displayer to display a still-image-use through image corresponding to the still-image-use image size, repeatedly creates the image signal and causes the displayer to display a moving-image-use through image corresponding to the moving-image-use image size, switches the still-image-use through image and the moving-image-use through image, and accepts the still-image recording instruction or the moving-image recording instruction when the still-image-use through image or the moving-image-use through image is displayed.