Modernern cameras use a shutter system. Although it is possible to make a camera with a pin hole. But either way there needs to be a mechanism to stop the light from hitting the light sensitive paper which would be a shutter.
opening that lets light in
An aperture in a camera works by adjusting the size of the opening through which light enters the camera. By changing the size of the aperture, the amount of light that reaches the camera's sensor can be controlled. A smaller aperture lets in less light, while a larger aperture lets in more light.
The pupil lets light into the eye.
Aperture is the opening in the lens of a camera that can be adjusted to control the amount of light that enters the camera. By changing the size of the aperture, more or less light can pass through to the camera sensor, affecting the exposure of the photograph. A larger aperture lets in more light, resulting in a brighter image, while a smaller aperture lets in less light, resulting in a darker image.
To calculate the f-stop of a camera lens, you divide the focal length of the lens by the diameter of the aperture opening. The f-stop is a measure of how much light the lens lets in, with lower f-stop numbers indicating a larger aperture opening and more light entering the camera.
The aperture on a camera lens controls the amount of light allowed to pass through to the film by adjusting the size of the opening. A smaller aperture lets in less light, while a larger aperture lets in more light.
F22 - All the lenses I have for my 35mm camera have an F22 setting, this lets the least amount of light through the lens.
An aperture on a camera is the opening through which light enters the camera lens. It affects the quality of photographs by controlling the amount of light that reaches the camera sensor, as well as the depth of field in the image. A larger aperture lets in more light and creates a shallower depth of field, resulting in a blurred background and a sharper subject. A smaller aperture lets in less light and creates a deeper depth of field, keeping more of the image in focus.
aperture
The camera aperture is like the pupil of the eye, adjusting in size to control the amount of light that enters the camera. A smaller aperture lets in less light, while a larger aperture lets in more light. This helps to regulate the exposure of the image being captured.
The Shutter.
When you click the camera the shutter behind the lens of the camera opens briefly and lets in the light on to the film. I am no specialist and this is what I learnt in school.