1. A 3D image reproduction apparatus, comprising: an acquisition section that acquires video image data configured from a right eye image and a left eye image for displaying a 3D image, image capture shortest distance data representing an image capture shortest distance during image capture of the video image data, image capture data for computing distance, and parallax data representing a setting parallax that is set for the right eye image and the left eye image; a computation section that detects a predetermined main imaging subject in each frame of the video image data, that computes a main imaging subject parallax for each of the frames based on the detected main imaging subject, and that employs the image capture data and the setting parallax to compute a relationship between the main imaging subject parallax and a main imaging subject distance, wherein a maximum parallax of the main imaging subject is calculated using the relationship between the main imaging subject parallax and the main imaging subject distance; and an adjustment section that, when the image capture shortest distance data has been acquired by the acquisition section, adjusts the setting parallax acquired by the acquisition section such that the maximum parallax of the main imaging subject is within a predetermined permissible range when image capture was at the image capture shortest distance, using the relationship between the main imaging subject parallax and the main imaging subject distance that has been computed by the computation section.