Is the painting actually painted by Rembrandt? In the lecture, the professor is skeptical about the idea mentioned in the reading passage that the painting of a woman which is widely known as Rembrandt's work is not actually painted by him. The professor, however, argues that this painting is indeed Rembrandt's work. First, in the reading, it is pointed out that the way the woman dressed in the painting is inconsistent because a servant is not supposed to afford such a luxurious fur collar. By contrast, the professor maintains that according to the result of X-ray test, the fur collar in the painting was added by later merchant, in order to increase its value. The way the woman dressed is practical without the later added fur collar. Second, the professor then refutes the article's idea that the painting contains an error in the use of light and shadow for the woman's face is not supposed to be illuminated by a dark fur collar. She states that in the original painting, the woman was wearing a light-colored collar which illuminates her face. In this way, the light and shadow in that painting is realistic. Finally, the professor challenged the idea mentioned in the passage that the painting was painted on a panel which was made by pieces of wood glued together. She points out that the original painted was painted on a single wood panel and the panel was glued by others to enlarge the panel so that to increase its value. Additionally, the original wood is from the same tree as another painting by Rembrandt.