Lucy Photography

The aperture on a camera lens is very similar to a human eye. In the light, the pupil would go very small because it's re-adjusting to the light. In the dark, the pupil would appear larger to consume more of the light. Which is very similar to the lens of a camera. In the bright light you need to turn the aperture on the camera lens down(smaller hole) which allows less light to enter. If you are in a place that doesnt have as much light you need to open up the aperture more(bigger hole) to allow more of the light in. When the aperture is open, you have a smaller depth of field which makes one thing clear with the background blurry. When the aperture is closed down you have a larger dept of field where almost everything is in focus and not blurry.