Focus ring is a term commonly used in photography to refer to the part of the camera lens that allows for manual adjustment of focus. However, there are a number of synonyms that can be used to describe this feature. Some of the most common include focus adjustment, focus control, focus dial, focus wheel, and manual focus. Each of these terms describes the same basic function of adjusting the focus of the lens manually, allowing the photographer to create precisely focused images. Regardless of which term is used, the focus ring (or its equivalent) is a critical part of any photographer's toolkit.