What does changing the aperture do?
Changing the f-number changes the size of the aperture, changing the amount of light that passes through the lens.
The higher the f-number, the smaller the aperture and the less light that passes through the lens; the lower the f-number, the larger the aperture and the more light that passes through the lens..
How does aperture affect focus?
Bringing it all into focus. Depth of field is the first of two characteristics that aperture controls, affected by the size of your aperture, the lens you choose, the distance from your subject and the size of your image sensor. The larger your aperture (the lower the f-stop number), the less depth of field you have.
How does aperture affect depth of field?
The f-stops work as inverse values, such that a small f/number (say f/2.8) corresponds to a larger or wider aperture size, which results in a shallow depth of field; conversely a large f/number (say f/16) results in a smaller or narrower aperture size and therefore a deeper depth of field. …
What happens if aperture is increased?
When you increase the aperture value the aperture opening inside the lens gets smaller, reducing the amount of light that can enter the camera. Similarly, when you decrease the aperture value the opening gets bigger, allowing more more light to enter the camera.