Sunglasses shooting tips：
1. first, we put the sunglasses on the shooting table with white paper.
2. Place the sulfuric acid paper above the product to surround it and turn on the background light.
3. hit the background light on the sulfuric acid paper; for the subject, the sulfuric acid paper is the luminous body, and here the sulfuric acid paper also acts as a white background so that the top of the product fills the light, and do not have to worry about the shadow of the surrounding objects.
