In addition:
(1) The photos should be clear, so as to avoid that the product design cannot be clearly displayed due to focusing and other reasons.
(2) The background of the photo should be single, so as to avoid other contents besides the design product. There must be a proper brightness difference between the product and the background to clearly show the appearance design of the product.
(3) Photography should usually follow the orthographic projection rule to avoid the distortion caused by perspective from affecting the expression of product design.
(4) Photos should avoid the expression of product design influenced by strong light, reflection, shadow and reflection.
(5) In general, products in photos should avoid containing content or background, but when the product design can be clearly displayed by relying on content or background, it is allowed to keep content or background.