Photography, it is said that the image quality of bull's head is better than that of dog's head. Why can't I feel different? What's the difference in picture quality?

The ultimate resolution that the lens can achieve, especially the center resolution and corner resolution. In addition, if it is a wide angle, the edge distortion of the good head is better and will not be particularly distorted. The blur of fixed focus and telephoto will be more beautiful. The emphasis of the materials is different. His aperture and other indicators will be higher, depending on your demand for depth. As for the color, it doesn't matter whether it is colored by computer or not. I don't think it matters.