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摄像机基本知识(国外英文资料)
摄像机基本知识(国外英文资料)
A, lens,
The camera USES lenses to absorb beautiful objects, which contain spectral (or color) information of different levels of brightness. Whether it is a digital camera or a traditional camera, first received is scenery of optical information, this information must pass through the optical lens to image on the sensitive device. The simplest lens is a single components convex lens, which is similar to a magnifying glass at a flat time. But in actual application, because the lens with spherical aberration, chromatic aberration and other factors that affect the image quality, in order to solve this problem, manufacturers generally used in the design of the different curvature in front of the cameras, lens combination of different materials, in order to eliminate or reduce the influence.
Second, electronic viewfinder
Electronic viewfinder is put inside a mini LCD viewfinder, due to the fuselage and the patch of shade, this mini LCD light is less than the outside world, there would be no adverse effect on the display. On the other hand, it USES a set of camera lenses to look at LCDS, with a certain magnification. The electronic viewfinder function is similar to LCD LCD display, but it is displayed through optical viewfinder. Its advantage is that it can avoid excessive consumption of power by opening LCD screens, increasing the time and battery life of the camera. It also avoids viewing errors caused by the glare of the LCD display. The electronic viewfinder can be used for playback, preview, and menu manipulation as well as color LCD.
The disadvantage of the electronic viewfinder is that the quality shown is slightly different from the viewfinder for a real single-camera camera. Image colors also tend to be less vivid and subtle than the images themselves. It appears rough and granular. You cant show the smallest details of the image taken, such as whether the human eye is open or not. But everything is imperfect, and the convenience of electronic v
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