What does a high f-stop number indicate about depth of field?

Study for the Evidence Technician Exam. Use flashcards and multiple choice questions with hints and explanations. Prepare effectively for your exam!

A high f-stop number indicates a deeper depth of field, which means that a larger portion of the image will be in focus. This occurs because a higher f-stop value corresponds to a smaller aperture opening in the lens. When the aperture is smaller, it allows less light to enter, but simultaneously increases the range of distances that are sharp in the photograph.

In practical terms, this is particularly useful in situations like landscape photography where the goal is to keep both the foreground and background in sharp focus. Conversely, a low f-stop number provides a shallower depth of field, ideal for portraits where the subject is sharp and the background is blurred. Understanding these relationships helps photographers make intentional choices about their images and the effects they wish to achieve.

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