But those who do reproductions are not allowed to take their own photographs at the NPM. Too many variables are beyond their control, which is why Steven Chen admits that "100 % fidelity in a reproduction is impossible."
但由於被授權複製的業者不能進入故宮拍攝原畫，無法控制的變數太多，因此諶懷椿坦承，「百分之百的仿真，已不太可能。」