Canon EOS 6D Mark II Basic Instruction Manual - Page 141

3 Correction of Lens Aberrations due to Optical CharacteristicsN Lens Correction Data The lens correction data for lens aberration corrections is registered (stored) in the camera. With [Enable] selected, the peripheral illumination correction, chromatic aberration correction, distortion correction, and diffraction correction will be applied automatically. With EOS Utility (EOS software, p.192), you can check which lenses have their correction data registered in the camera. You can also register the correction data for unregistered lenses. For details, refer to the EOS Utility Instruction Manual. For lenses incorporating the correction data, it is not necessary to register the correction data to the camera. 139