1. An apparatus for acquiring multi-view light field data, comprising: a modulator to modulate an image input to an optical system according to a modulation characteristic of the modulator; an image analyzer to analyze the image from the modulator; and a controller to move the modulator according to the result of the analysis of the image analyzer, wherein where a multi-view image is output from the image analyzer, the controller increases the number of images included in the multi-view image by moving the modulator toward the optical system.