A thick negative is an old photographic term used to describe a dense or heavily exposed negative. These negatives appear darker due to the amount of silver or emulsion that has been developed, affecting the overall contrast and tonal range of the image.
Photographers working with thick negatives need to adjust printing or scanning techniques to achieve balanced exposures and retain detail in highlights and shadows. Understanding this concept is important for both historical photography and traditional darkroom practices, ensuring accurate reproduction of the original image.