What does it mean to take photos with a large aperture?

The meaning of taking photos with a large aperture: the exposure of the photo is determined by the aperture and shutter together. Under the same exposure, the larger the aperture, the faster the shutter. In places with poor lighting, a lens with a large aperture can ensure a faster shutter speed, and the picture can be accurate even when held handheld. So when the light is dim, you need to open the aperture wider.

The exposure of a photo is determined by aperture and shutter speed. Under the same exposure, the larger the aperture, the faster the shutter. In places with poor lighting, a lens with a large aperture can ensure a faster shutter speed, and the picture can be accurate even when held handheld. So when the light is dim, you need to open the aperture wider.

Extended information:

Aperture and shutter are the two major tools for controlling the amount of light during photography. Aperture refers to the size of the opening in the middle of the lens, which controls the amount of light during film or CCD exposure. brightness.

The aperture is actually designed to adjust the amount of light based on the pupil structure of the human eye. The aperture is composed of a circle of thin and overlapping metal blades. The openings of the blades form a circle. The amount of light can be controlled by enlarging or closing the aperture.

In the world of traditional cameras, the higher the aperture, the higher the price. Therefore, no current lens can have all apertures when it is manufactured. Most general-purpose 35mm camera lenses have apertures from f/1.4 to f/22. Special lenses for large cameras (4X5) only have apertures as small as f/64, but they also limit their maximum aperture to f/5.6. .