Understand the terminology of digital SLR camera

[Key words]: photosensitive element photosensitive element can change the light signal into analog signal, and finally form the digital photo we see. It has a direct impact on the size, resolution and imaging quality of the photos. Common photosensitive elements are divided into CMOS and CCD. < / P > < p > CCD is the “photoelectric coupling element”, which has complex photosensitive mode, high imaging quality and high production cost. At present, most of the 120 frame digital cameras use CCD sensors. < / P > < p > CMOS means “complementary metal oxide semiconductor”. Its production cost is low and power consumption is small, but the noise control of imaging is not as good as CCD. However, with the continuous maturity of manufacturing technology, this gap has become smaller and smaller. At the same time, due to the advantages of manufacturing cost, it has been widely used in mainstream digital SLR cameras. < / P > < p > because many camera manufacturers vigorously promote high pixel in advertising, consumers mistakenly believe that the higher the pixel, the better the imaging quality. In fact, this is a serious misunderstanding. For home users, 12 million pixels is enough for daily use. No matter how high the pixel is, it will not be used, but will occupy the hard disk space of the computer. Baidu continues to work on quantum computing to lay a solid foundation for new infrastructure construction