DIN ISO 9039:2008-08

This standard specifies methods of determining distortion in optical systems for the purposes of quality evaluation. It applies to optical imaging systems in the optical spectral range from 100 nm to 15000 nm which, by their design, aim at a rotationally symmetric image geometry. It is applicable to electrooptical imaging systems provided that adequate rotational symmetry of the image is guaranteed. It does not apply, therefore, to anamorphic and fibre optic systems.