Is there a big difference in image quality between Canon 7D2 and full-frame machine? Ask senior photographers to comment!

Theoretically, it should be said that the larger the image sensor is, the better the image quality will be and the finer the image quality will be. Because Quan Huafu and APS frame area 1.5 are the same pixel (Nikon, Sony, etc. ) or 1.6 times (Canon), the distance between points will be larger, the possibility of mutual influence will be smaller, and the noise generated will naturally be lower. For example, if the image quality of the flagship Canon 7D2 is compared with that of Quan Huafu, the difference should be very small (through noise processing of advanced image processor, etc.). ).