What is the Manual Focus for the camera?

We may ever heard of the Manual Focus for the camera(such as the camera in AHD CCTV Kit, AHD CCTV Kit HD, AHD CCTV Kit Near Me, AHD CCTV Kit Youtube, AHD Kit AHD CCTV System, AHD Four in One CCTV Kit).

So what does the Manual Focus mean?

The Manual Focus refers to a focusing method that to achieve the clear focus by turning the lens focusing ring or stepping nearer or further from the object. In the era of the digital cameras, the manual focus is usually used when the auto focus is wrong. It is a powerful supplement to the auto focus and it is also an indispensable function in the digital age. Simply speaking, mannuallly adjusting the final focus is the Manual Focus, and the Manual Focus can be divided into 2 types. One is the Electronic Manual Focus, the other is the Full-time Mechanical Manual Focus. The Electronic Manual Focus is usually attached to the large-aperture super telescope lens, the electronic circuit detects the rotation of the manual focus ring, and then drives the lens motor. As for the The Full-time Mechanical Manual Focus, when it is activated, there will be no power consumption, and the lens group will be driven by the roller and the rotating ring, which is different from the Auto Focus.

The Manual Focus is a focus method that adjusting the camera lens by manually turning the focus ring, to make the captured photos clear. This method largely depends on the human eye's judgment of the image on the focusing screen, the proficiency of the photographer and even the vision of the photographer. Early single-lens reflex cameras and rangefinder cameras completed the focusing operation basically via the manual focus. Current quasi-professional and professional digital cameras, as well as the SLR digital cameras, are all equipped with the manual focus function to meet different shooting needs.

In the era of the digital cameras, the manual focus function is generally used when the Auto Focus is wrong. when the contrast of the scene is small, the background contrast of the subject is too large, the environment brightness is too low /high, the interference from high-brightness light sources exists, the photographer need to shoot through a transparent barrier(such as the glass), or need to shoot the subject outside the focus area, etc., the Auto Focus can easily go wrong. The manual focus function for the cameras with the real-time view function can be easily used through the 2x or 4x magnification, and then the accurate focus will be achieved, no need for the excellent vision.

In a word, the Manual Focus is still very important even if the Auto Focus is so convenient already.