I have a 5D Mark IV which I have had fora number of years. The other day I had a fall and slightly damaged my camera/lens, although I THINK it's all cosmetic.
Today when I turn the camera on/off I hear a series of quiet clicks from the camera... which I THINK is the sensor cleaning, maybe? Thing is I have absolutely never heard or noticed this sound before.
Is this what it is? Is hearing this noise normal?

