Sensitometric strips should be exposed to which type of light?

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Multiple Choice

Sensitometric strips should be exposed to which type of light?

Explanation:
Sensitometric strips are exposed to a calibrated, controlled light source specifically designed for sensitometry. This sensitometric light provides uniform, known exposures across the strip so you can generate a reliable optical-density versus exposure curve (the characteristic curve) that tells you film speed and how the processor is performing. Exposing the strip to X-rays would not produce the intended optical density data for this purpose, and wavelengths like green or ultraviolet light can affect the emulsion unpredictably or cause fogging, leading to inaccurate measurements. So the appropriate exposure is with sensitometric light only.

Sensitometric strips are exposed to a calibrated, controlled light source specifically designed for sensitometry. This sensitometric light provides uniform, known exposures across the strip so you can generate a reliable optical-density versus exposure curve (the characteristic curve) that tells you film speed and how the processor is performing. Exposing the strip to X-rays would not produce the intended optical density data for this purpose, and wavelengths like green or ultraviolet light can affect the emulsion unpredictably or cause fogging, leading to inaccurate measurements. So the appropriate exposure is with sensitometric light only.

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