Magnification Ratio

The magnification ratio describes the relationship between the actual size of an object and the size of its image on the film or sensor. A magnification ratio of 1:1 is reached when the object is reproduced in its actual size. This means 1cm in nature corresponds precisely to 1cm on the film or sensor, independently of the format used. When using a ratio of 2:1, the object will be illustrated twice as large as its natural size. Therefore, at a 2:1 ratio, 0.5cm in nature corresponds to 1cm on the film or sensor.