Canon EOS-1D C EOS 1D X Instruction Manual - Page 155

3 Lens Peripheral Illumination / Chromatic Aberration Correction Peripheral light fall-off occurs in lenses whose characteristics make the image corners look darker. Color fringing along subject outlines is another chromatic aberration. Both lens aberrations can be corrected. The default setting is [Enable] for both corrections. 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. Turn the dial to select [Peripheral illumin.], then press . Select [Enable], then press . If [Correction data not available] is displayed, see "About the Lens Correction Data" on page 157. 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 slightly lower than the maximum correction amount settable with Digital Photo Professional (provided software, p.410). The higher the ISO speed, the lower the correction amount will be. 155