What feature does autofocus lack?

Autofocus, a feature found in most modern cameras and smartphones, allows the lens to automatically adjust to focus on a subject. Despite its usefulness, there are some features or capabilities that autofocus lacks:

1. Manual Control: Autofocus systems make focusing decisions based on algorithms and sensors. This means the photographer has limited control over exactly which part of the scene is in focus. While many cameras allow for selecting autofocus points, it's not the same level of control as manual focusing.

2. Low-Light Performance: While modern autofocus systems have improved greatly, they can still struggle in low-light conditions. This is because autofocus systems rely on contrast to determine focus, and low light reduces contrast.

3. Speed in Certain Conditions: Autofocus can sometimes be slower than manual focus, particularly when it 'hunts' for focus in challenging conditions or with subjects that have little contrast or are moving quickly.

4. Focus on Non-Contrast Areas: If the subject or scene lacks contrast, the autofocus may have trouble locking onto it, as it typically detects focus by changes in contrast.

5. Predictive Focusing: While some higher-end cameras offer predictive autofocus (which anticipates where a moving subject will be), most autofocus systems can't predict movement and may lag behind fast-moving subjects.

6. Creative Focus Effects: Some photographic effects, like intentionally blurring certain areas for an artistic result, are harder to achieve with autofocus since it generally aims for the sharpest focus possible on the subject.