1. An instrument that measures the optical density or darkness of a material, such as photographic film or paper.
Usage: Commonly used in photography, printing, and radiography

Examples

• The photographer used a densitometer to check the exposure levels on the developed film.
• A densitometer is essential in quality control for printing operations.
• The radiologist calibrated the densitometer before analyzing the X-ray images.
• Densitometers help ensure consistent color and tone in professional photography.
• The lab technician measured the optical density of the sample using a densitometer.