Abstract: A full or partial air-to-water de-anamorphoser and method of air-to-water de-anamorphosis is provided. A housing has a planar transparent window in one end thereof adjacent to a defined air space. The housing is placed under the water's surface with an acute angle being formed between the window and the water's surface to thereby define a virtual prism whose center leads its apex. An optical prism having an apex and a center is positioned in the housing's air space and is spaced apart from the housing's window such that the prism's apex leads its center as measured along a line parallel to light exiting the prism. The light exiting the prism was originally incident on the water's surface, subsequently traveled through the water, and then was passed sequentially through the housing's window, the housing's air space and the prism.