How to adjust the parameters when taking pictures with Canon 700d camera?

When the Canon 700D camera shoots in Av (Aperture Priority) or M (Manual) mode, the photographer can adjust the aperture through the main dial wheel on the upper part of the fuselage. When shooting in other modes, the photographer cannot adjust the aperture.

When taking pictures, the camera can control the depth of field through the aperture size. When shooting in aperture priority or manual mode, the photographer can set the aperture size to determine the depth of field of the photo.

A camera is a kind of equipment that uses the principle of optical imaging to form an image and records the image with a negative. This is an optical instrument used for photography. In modern social life, there are many devices that can record images, all of which have the characteristics of cameras, such as medical imaging equipment and astronomical observation equipment.

After the light reflected by the shot scene is focused by the camera lens and the shutter that controls the exposure, the shot scene forms a latent image on the photosensitive material in the camera box, and forms a permanent image after being developed and fixed. This technology is called photography, which is divided into general photography and professional photography.