An imaging apparatus includes a captured image acquisition unit, a combination sequence determination unit, and an image combination unit. The captured image acquisition unit acquires data of multiple captured images that have been imaged at multiple focus positions. The combination sequence determination unit determines a sequence of the images imaged by an imaging unit, the sequence being different from both a progressive sequence of focus distances and a sequence of imaging, to be a sequence for combining the data of the multiple captured images acquired by the captured image acquisition unit. The image combination unit combines the multiple captured images imaged by the imaging unit, in the order determined by the combination sequence determination unit, creating data of an omnifocal image.