Which term denotes the system's capacity to display a wide range of gray levels?

• A. spatial frequency
• B. contrast resolution
• C. dynamic range
• D. signal

Answer: (C)

Dynamic range is the measure of how wide the tonal range a system can display—from the darkest black to the brightest white. A wide dynamic range lets you show many gray levels and preserves detail in both shadows and highlights, because the system can represent subtle differences in brightness across a broad span. This concept specifically captures the capacity to display a wide range of gray levels, unlike spatial frequency, which is about how fine the image detail is; contrast resolution, which refers to the smallest detectable brightness difference within the available range; or signal, which is the information content rather than the display’s tonal span.