Actual size
From The Glossary of Digital Photography
(1) Creating an image of an object in which the object in the photograph has the same dimensions of the actual object. Thus a two-inch long rock measures two inches in the photograph as well. This is also called life-size. (2) The creation of a photograph, either a print or a digital image, in which the dimensions of the photograph or image are the same as the size at which it will be reproduced, for example in a magazine or in a book. If an image will be three inches by four inches in the book, then the print or digital image is also three inches by four inches.
