About photography: What's the name of the round lamp in the photo? How to shoot this light! ? High score solution!

That circular aperture is called halo, and the root of halo phenomenon is the direct lens of strong light. For the halo phenomenon caused by direct light, the most effective solution is to avoid it. As long as it does not directly enter the viewing range of the lens, the disadvantages will be solved. The specific methods can be summarized as follows: 1. Try to avoid the lens and the light source (usually the sun) in the same line when shooting; Second, when shooting in the backlight position, you should wear a hood or lower the lens position to avoid direct light; Third, use a long focal length lens to narrow the shooting angle range, thus excluding the light source from the viewing range.