Auto Correction of Brightness and Contrast 
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

	Select [Auto Lighting Optimizer]. Under the [ 2] tab, select [Auto Lighting Optimizer], then press .
	Select the setting. Select the desired setting, then press
	Take the picture. The image will be recorded with the brightness and contrast corrected if necessary.

 Under [ 3: Custom Functions (C.Fn)], if [6: Highlight tone priority] is set to [1: Enable], the Auto Lighting Optimizer will be set automatically to [Disable], and the setting cannot be changed.
 If the Auto Lighting Optimizer’s effect is too strong and the image is too bright, set [Low] or [Disable].
 If a setting other than [Disable] is set and you use exposure compensation or flash exposure compensation to darken the exposure, the image may still come out bright. If you want a darker exposure, set this function to [Disable].
 Depending on the shooting conditions, noise may increase