Related Words

Focus Distance: The distance from the camera to the object being focused on.

IF (Internal Focusing): System in which only the internal lens group shifts during focusing. If benefits include focusing without changing the physical length of a lens body, faster focusing, reduced diameter of th . . . View Full Definition

Infrared Focus: See ir setting.

Manual Focus: Manual Focus mode allows a user to manual control the lenses and set the distance to the subject. It is mainly designed for users who need to shoot in low light conditions, or use macro or s . . . View Full Definition

Preset Focus Shooting: Technique in which focus is set at a predetermined setting and the shutter is released when the subject moves into the focus point.

Long Focus: A lens in which the focal length is much greater than the diagonal of the film format with which it is used.

Hyperfocal Distance: Distance between the camera and the hyperfocal point.

Focusing Scale: Scale of distances marked on a lens focusing ring.

Focusing Magnifier: Device to magnify the optical image and aid visual focusing.

Focusing Screen: Ground glass screen fixed to the camera at the image-forming plane, enabling the image to be viewed and focused.