The relative size of an object as compared to other objects in general proximity. Also refers to a measuring device or set of marks to indicate object size in a photograph.forensicphotographyglossary
(1) The relative size of an object. (2) A set of marks to indicate distances at which a lens is focused, often engraved near the focusing ring on a lens.
The ratio between the size of an object and its model or representation, as in the scale of a map to the actual geography it represents.