Which of the following is NOT listed as a camera feature that assists in locating water under a thermoplastic membrane?

• A. Thermal Tuning
• B. Color Palettes
• C. FFC
• D. Digital Zoom

Answer: (D)

Locating water under a thermoplastic membrane with infrared imaging depends on optimizing and clearly presenting the thermal data so subtle moisture-related patterns stand out. Thermal tuning adjusts the camera’s sensitivity and reduces noise, helping detect small temperature differences that moisture can cause. Color palettes change how those differences are visualized, making cool or warm spots easier to spot at a glance. Flat Field Correction keeps the image uniform by correcting detector nonuniformities, so what you see reflects actual temperature variations rather than sensor artifacts. Digital zoom, while it can enlarge the image, doesn’t improve the underlying data or reveal new information about moisture; it can even degrade detail by magnifying noise. So it doesn’t contribute to locating water under the membrane, unlike the other features.