How can a photo of one person show two people?

One person's photo can show the effect of two people because of the double exposure camera technology. Double exposure refers to multiple exposures on the same negative, which is a skill that many people must play when touching the camera. That kind of mysterious and ineffable visual effect often makes people indulge in it. Nowadays, middle and high-end automatic cameras have multiple exposure functions, and you can set multiple exposures by using the function settings.

A camera, referred to as a camera for short, is a device that uses the principle of optical imaging to form an image and records the image with a negative. Many devices that can record images have the characteristics of cameras. Medical imaging equipment, astronomical observation equipment, etc. A camera is an optical instrument used for photography. After the light reflected by the shot scene is focused by the camera lens (scene lens) and the shutter for controlling 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. Divided into general photography and professional photography.

Skills of using digital camera;

1. Pay attention to setting the camera parameters before shooting.

2. Try to shoot at the highest resolution.

3. Correct use of lighting conditions.

4. Use the flash carefully.

5. Adjustment of color temperature.

6. Download the photos to the computer hard disk for observation, selection and storage.

7. Modify the original image.