What can a camera do to reflect the light from the glass of a photo frame?

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Analysis:

The solution to reflection is to weaken its influence, such as using a polarizer, but it is of little use when facing the picture; The second is to avoid reflection, for example, the camera slightly avoids the reflection angle, but the angle may be biased, resulting in distortion of the picture perspective; The third is to start with the light source, that is, to change the light distribution angle. If the light shines from a higher angle, the reflection can be kept away from the front lens (that is, the light on the side, the light on the left and right). Considering the uniformity of light, it is best to use natural skylight for lighting; If there are lights, it is better to have one on the left and one on the right.

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