backfokus

Backfokus, also known as back focus, is a technique used in photography to create a shallow depth of field, where the subject is in focus while the background is intentionally blurred. This effect is achieved by setting the lens to focus at a point behind the subject, rather than on the subject itself. The term "backfokus" is derived from the Dutch word "achterfokus," which translates to "back focus."

The primary purpose of backfokus is to isolate the subject from the background, drawing the viewer's attention to the main subject of the photograph. This technique is commonly used in portrait photography, where the photographer wants to highlight the subject's face or body while blurring the surroundings. It is also used in landscape photography to emphasize a specific element within the scene.

To achieve backfokus, the photographer must manually focus the lens at a point behind the subject. This can be done using the lens's manual focus ring or by using the camera's autofocus system and then adjusting the focus manually. The exact amount of backfokus needed depends on the subject's distance from the camera and the desired depth of field.

Backfokus can be achieved with both manual and automatic cameras, although manual cameras offer more control over the focus point. In digital photography, the effect can be achieved using software to adjust the depth of field after the photograph has been taken. However, this method may not produce the same level of sharpness and clarity as physical backfokus.

Backfokus is a versatile technique that can be used in a variety of photographic situations. It allows photographers to create visually striking images by isolating the subject and blurring the background. However, it requires careful consideration of the subject's distance from the camera and the desired depth of field.