Canon EOS Rebel T6s EF-S 18-135mm IS STM Lens Kit Instruction Manual - Page 120

3 Reducing FlickerK If you shoot an image with a fast shutter speed under a light source such as fluorescent light, the blinking of the light source causes flicker and the image may be vertically unevenly exposed. If continuous shooting is used under these conditions, uneven exposures or colors across the images may result. With anti-flicker shooting, the camera detects the frequency of the light source's blinking and takes the picture when the flicker causes less effect on exposure or color. 1 Select [Anti-flicker shoot.].  Under the [z3] tab, select [Antiflicker shoot.], then press . 2 Select [Enable].  Select [Enable], then press . 3 Take the picture.  The image will be taken with reduced unevenness of exposure or color caused by the flicker. 120