The anti-flicker feature is a built-in functionality found in modern cameras that is designed to detect and mitigate any potential issues that may arise when artificial light sources are present.
It is well-known that light sources, such as fluorescent, mercury, and LED lights, can pulse at a rate of 100-120 Hz depending on the power supply. Although this pulsing may not be noticeable to the naked eye, it can create undesired effects when filming and taking photos if the camera's shutter speed does not synchronize with the pulsing of the light. This can result in frames that are either too bright or too dark, leading to flicker in video or unusable photos when taking still images.
To address this issue, the anti-flicker feature is available to help minimize the unwanted effects of artificial light sources. Conversely, if you only shoot in daylight, you can disregard this feature.
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