noun
- an instrument used to measure the sensitivity of photographic materials to light
Usage: photography; technical
Examples
- The photographer used a sensitometer to test the film’s response to different light exposures.
- Quality control labs rely on sensitometers to ensure consistent photographic paper performance.
- The sensitometer produced a step wedge pattern to analyze the film’s characteristic curve.
- Digital sensitometers have largely replaced older analog models in modern photography labs.
- Students in the photography course learned to calibrate the sensitometer before testing new film stock.