Canon EOS 7D Mark II Advanced Owners Manual - Page 181

3 Correction of Lens Peripheral Illumination and Aberrations Peripheral light fall-off is a phenomenon that makes the image corners look darker due to the lens characteristics. Color fringing along subject outlines is called chromatic aberration. And image distortion due to lens characteristics is called distortion. These lens aberrations and light falloff can be corrected. By default, Peripheral illumination and Chromatic aberration correction are set to [Enable], and Distortion correction is set to [Disable]. If [Correction data not available] is displayed, see "Lens Correction Data" on page 183. Peripheral Illumination Correction 1 Select [Lens aberration correction]. Under the [z1] tab, select [Lens aberration correction], then press . 2 Select the setting. Check that [Correction data available] is displayed for the attached lens. Select [Peripheral illumin.], then press . Select [Enable], then press . 3 Take the picture. The image will be recorded with the peripheral illumination corrected. Depending on shooting conditions, noise may appear on the image periphery. The correction amount applied will be lower than the maximum correction amount settable with Digital Photo Professional (EOS software, p.536). The higher the ISO speed, the lower the correction amount will be. 181