Canon EOS Rebel T6s EF-S 18-135mm IS STM Lens Kit Instruction Manual - Page 115

3 Auto Correction of Brightness and ContrastK If the image comes out dark or the contrast is low, the brightness and contrast can be corrected automatically. This function is called Auto Lighting Optimizer. The default setting is [Standard]. With JPEG images, the correction is applied when the image is captured. In Basic Zone modes, [Standard] is set automatically. 1 Select [Auto Lighting Optimizer].  Under the [z2] tab, select [Auto Lighting Optimizer], then press . 2 Select the setting.  Select the desired setting, then press . 3 Take the picture.  The image will be recorded with the brightness and contrast corrected if necessary. 115