One of the most important indicators for measuring the quality of digital cameras-CCD/CMOS

Currently, there are four types of consumer-Level Digital Cameras: 2/3 inch, 1/1. 8 inch, 1/2. 7 inch, and 1/3. 2 inch. The larger the size of CCD/CMOS, the larger the photosensitive area, the better the imaging effect. The effect of a 1/1-8 inch 3 million-pixel camera is usually better than that of a 1/2-7 inch 4 million-pixel camera (the latter's photosensitive area is only 55% of the former ). <This is why my camera is better than Comrade WF> it is a good thing to increase the number of CCD/CMOS pixels of the same size, however, this will also lead to a reduction in the photosensitive area of a single pixel and the possibility of insufficient exposure. <So I didn't buy 5 million pixels of Nikon's p1-800. In the case of the same CCD area, is enough for household use, I don't want to take large photos> but if you want to maintain the existing image quality while adding CCD/CMOS pixels, it is necessary to increase the total area of CCD/CMOS on the basis of maintaining at least one pixel area without decreasing. At present, it is difficult to manufacture CCD/CMOS with larger sizes, and the cost is also very high. Therefore, the cost of CCD/CMOS digital cameras is also high. The size of the photosensitive device directly affects the volume and weight of the digital camera. The smaller the size of CCD/CMOS, the more professional the digital camera, the larger the size of CCD/CMOS. <Hehe, so do not buy Sony T7 \ T9. I am so sad to see that many mm are confused.>