What does photo hdr mean?

General photography, taking care of the exposure of high-light areas, dark details will be lost, while taking care of dark details, high-light parts will be overexposed. In order to solve this problem, HDR is used, which means high dynamic lighting rendering in Chinese. Simply put, a photo contains both highlights and dark details.

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. The earliest camera structure was very simple, including only a black box, a lens and photosensitive materials. Modern cameras are complex, including lens, aperture, shutter, ranging, framing, photometry, film transmission, counting, self-timer, focusing, zooming and other systems. It is a complex product integrating optics, precision machinery, electronic technology and chemistry.