Auto Focus is a digital camera feature that enables the camera to adjust its lens focus for in front object/object’s distance. When we hold a autofocuscamera to capture an objects image, we don’t know the distance between camera lens and the object. So, we can’t match it with camera’s focal length. Therefore, the image loses its sharpness. Generally, it happens in all the fixed focus cameras. But, an Auto Focus camera can adjust its focal length according to the distance between camera lens and object. It is very much helpful when we capture a Macro Image (Images in very short distance) or, capturing some texts from a paper or books.