Luminism is a movement in American landscape painting that was concerned with the depiction of light and its effect on surfaces and developed in connection with the Hudson River School. Stylistically, it is a sophisticated and meticulous naturalism that achieves atmospheric effects in seemingly invisible brushwork through precise analysis of light and virtuously nuanced tonal gradations. Luminism emerged in the 1830s, reached its peak in the 1850s and gradually subsided from the mid-1870s.