Regarding policy issues: Looking at the regulations of the world's major museums on taking photos of the audience, there are two attitudes: First, no photos; Second, no lighting is strictly prohibited. First, museums with "no photography" regulations prohibit not only photography, but also photography and video recording. The reason for making this provision is to protect intellectual property rights first, because their collections are mainly works of art, and the exhibits are mainly calligraphy, paintings, murals, thangka and so on. For example, the friel Art Museum in the United States, the National Art Museum and the Regong Art Museum in China are representatives of such museums. Second, museums with "No Flash" regulations are allowed to take pictures, but it is forbidden to turn on the flash and use the bracket when taking pictures, and it is generally not allowed to take pictures or videos. The reason for making this provision is that the first consideration is the protection of cultural relics, and the second consideration is the protection of intellectual property rights. The museums that make this provision are all historical and memorial museums, mainly because of their rich and varied exhibits, such as the British Museum in Britain, the Louvre in France, the Tashi Museum in Elmy (Oriental Palace) in Russia, the Palace Museum in China, the Comrade Mao Zedong Memorial Hall and the Comrade Deng Xiaoping Memorial Hall.
Those who denigrate the China Museum can stop eating.
2. As long as the museum has conspicuous notices and reminders, plus personnel supervision, ...
I admit that most museums in China have not done enough to help tourists improve their photography skills. A considerable number of security guards will only discourage them from making more constructive suggestions, because they don't know that the photos taken without turning on the flash are actually better. But the more serious problem is that quite a few viewers don't have this consciousness, and they deliberately play hide-and-seek with security guards to take pictures (as someone said in the answer to this question) or don't blame the public when there are many people. People who often visit museums can see this phenomenon.
Most of the exhibits are not so fragile, and even a tiny flash will not cause harm. ……
Most of the exhibits are exquisite. Or copy and paste ready-made answers:
In order to protect the exhibits, museum scholars have formulated lighting standards for different materials of the exhibits. When the illumination exceeds the range that the exhibits can bear, the exhibits will be damaged.
Recommended illuminance values of exhibits in China Code for Design of Museum Buildings;
Recommended illuminance value (lx) of exhibit category
Not sensitive to light: metal, stone, glass, ceramics, jewelry, enamel, enamel, etc. ≤300(lx)
Sensitive to light: bamboo wares, wood products, rattan wares, lacquerware, bone wares, oil paintings, murals, horn products, natural leather and animal specimens ≤ 180 (lx).
Especially sensitive to light: calligraphy and painting on paper, textiles, printed matter, pastel painting, dyed leather, plant specimens, etc. ≤50(lx)。
In order to protect cultural relics, domestic museums strictly control the light received by cultural relics in the exhibition hall according to standards, especially in the exhibition hall where cultural relics made of organic materials are displayed, and the illumination is controlled in a relatively low range, which is to protect cultural relics. Moreover, as can be seen from the above table, the illumination of cultural relics of any material cannot exceed 300 lux, otherwise it will cause damage to cultural relics. However, when the digital camera we commonly use turns on the flash to take pictures of an object one meter away from it, the instantaneous illumination of the object will reach about 200 ~ 250 lux, and it will increase with the distance from the object. When you turn on the flash to take pictures, the illuminance greatly exceeds the allowable value of some cultural relics.