While the first half of the century introduced expensive daguerreotypes, the latter half of the century is defined by the development of cheaper photographic techniques. For example, the ambrotype mim...While the first half of the century introduced expensive daguerreotypes, the latter half of the century is defined by the development of cheaper photographic techniques. For example, the ambrotype mimicked the look of the daguerreotype with its reflective surface; however, the newer technology used a light-sensitized glass surface instead of copper, which made for a much cheaper photograph to produce and purchase.