The camera is too dark. How can I brighten it?

You can adjust the brightness by adjusting the sensitivity, shutter time and aperture size.

1, the sensitivity can be adjusted, and the influence of sensitivity on photography can be manifested in two aspects. One is speed. Higher sensitivity can get faster shutter speed and be easier to understand. The second is image quality. The lower the sensitivity, the finer the image quality, the higher the sensitivity and the higher the noise. Generally speaking, it is appropriate to keep the sensitivity below 800.

2. Adjust the shutter time, and the shutter speed is in seconds. Common shutter speeds are:11/21/41/811/301/65438+. The longer the shutter time, the more light will enter, but if the shutter time is too long, the jitter will blur the photo.

3. Adjust the aperture size. The smaller the value behind f, the larger the aperture, the more light entering, the brighter the picture, the narrower the focal plane and the greater the blur of the subject background. The larger the value behind f, the smaller the aperture, the less light entering, the darker the picture, the wider the focal plane, and the clearer the front and back of the subject.

Extended data:

Working principle of SLR camera;

In the working system of SLR digital camera, after the light reaches the reflector through the lens, it is refracted to the focusing screen above to form an image. Through the eyepiece and pentaprism, we can see the scenery outside in the observation window.

When shooting in DSLR, press the shutter button, the reflector will pop up, and the shutter curtain in front of the photosensitive element (CCD or CMOS) will be opened at the same time, and the light passing through the lens will be projected onto the photosensitive original, and then the reflector will be restored immediately, and the image can be seen in the viewfinder.

This structure of the single-lens reflex camera ensures that it is shot through the lens, so that the image seen in the viewfinder is always consistent with the image on the film, and its framing range is basically consistent with the actual shooting range, which is very conducive to intuitive framing and composition.

Baidu encyclopedia-digital SLR camera