Where is the dust of Canon 500D (camera) automatic cleaning function? Do you want to dust yourself?

Each dust removal function relies on ultrasonic vibration to shake off the dust on the photosensitive element to its lower part.

There is a special sticker and the like below, which will be stained with dust.

Theoretically, the sticker will be completely covered by dust one day, but there is no precedent at present, because the world's first SLR Olympus E 1(2003) supporting ccd dust removal has not been replaced by sticky stickers because of too much dust, let alone later machines.