Which of the following methods can be used to achieve focus in photography?

In photography, achieving the correct focus is crucial for producing sharp images, and the best way to do this involves using both autofocus and manual focus methods. Autofocus, commonly found in most modern cameras, allows the camera to automatically adjust the focus based on the subject; this is particularly useful for fast-moving subjects and in situations where quick adjustments are needed. Manual focus, on the other hand, allows the photographer greater control over the focus point, which can be beneficial in complex scenes or when precision is required, such as in macro photography or when shooting landscapes where depth of field is critical.

While zoom focus refers to adjusting the focal length of a lens to alter composition and perspective, it does not inherently assist in achieving sharp focus on a subject. Image stabilization is a feature that reduces blurriness caused by camera shake but does not directly impact the focus mechanism itself. Positional focus, although it sounds plausible, is not a widely recognized term or method in photography for focusing techniques.

Therefore, combining autofocus and manual focus provides photographers with versatile tools to ensure their images are sharp and well-focused according to the requirements of their specific shooting circumstances.