What effect does a harsh angle have on a camera's image usability?

When a camera is positioned at a harsh angle, it can significantly compromise the usability of the captured image. This occurs because extreme angles can lead to distortion, shadows, and reduced detail in critical areas, resulting in images that are hard to interpret or utilize effectively. For instance, a steep angle might obscure important elements or create perspectives that make it challenging for viewers to understand the context of the scene.

In contrast, enhancing clarity or improving resolution is more likely achieved through optimal camera positioning and appropriate lens selection. Additionally, file size reduction typically relates to compression techniques, not the angle at which the camera is placed. Therefore, harsh angles do not enhance image quality or usability, making the identification of compromised usability the appropriate answer.