A camera preserves a moment in time as a sort of physical or digital memory. Unlike the memories in our minds, a moment captured by a camera does not change over time. While both memories and photos may fade, the moments in photos remain accurate from the time they were captured, whereas memories in our brains can change over time.

While it’s not really the opposite of a camera (I’m not sure what would be - something that ‘forgets’ moments in time? Censorship?), I thought it was interesting how the brain, using sight (and other senses), records memories like a biological camera - but they are subjective memories, in contrast to the objective ‘memories’ recorded by an actual camera.