When powered by alternating current, fluorescent lamps and certain other types of artificial lighting flicker at a rate determined by the frequency of the power supply, which depending on the timing of the shutter release may produce areas of uneven color or exposure. Flicker reduction helps prevent this by matching the timing of the shutter release to the flicker rate.
To enable flicker reduction, select Enable for Flicker reduction > Flicker reduction setting in the photo shooting menu.
To display an indicator in the viewfinder when flicker is detected, select On for Flicker reduction indicator. will be displayed in place of the buffer capacity if flicker is detected when the shutter-release button is pressed halfway.
The effects of the different settings are summarized in the following table.