Which is better, fish-eye and flat angle of reversing camera?

Fish-eye fluoroscopy and ordinary fluoroscopy have their own advantages and disadvantages, so it is hard to say who is good or bad. Usually, the corner of fish's eye is mostly used in large scenes, with a wider viewing angle, but the disadvantage is that the scene will be distorted, which is not conducive to close distance judgment and detailed observation. When applied to reflection, the corner of fish's eye can effectively avoid the dead angle (left and right corner) behind the vehicle, but it also has obvious shortcomings, that is, it is not conducive to close-range distance judgment and detail observation. So which one is better depends on your actual needs.