Scale-focus or zone-focus is a type of focusing system used by many inexpensive camera
Camera
A camera is a device that records images, either as a still photogra
Discussion
Ask a question about 'Scale-focus'
Start a new discussion about 'Scale-focus'
Answer questions from other users
Full Discussion Forum
Encyclopedia
Scale-focus or zone-focus is a type of focusing system used by many inexpensive camera
Camera
A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura , an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.... s from the 1940s and 1950s. These cameras have an adjustable focus, but lack a focusing aid such as a rangefinder
Rangefinder
A rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying, determining focus in photography, or accurately aiming a weapon.... . It is necessary to determine the distance to the subject and set the focus using a scale printed on the lens. If you are good at estimating distances, or have a tape measure
Tape measure
A tape measure or measuring tape is a flexible form of ruler. It consists of a ribbon of cloth, plastic, fiber glass, or metal strip with linear-measurement markings with SI and sometimes additionally imperial units.... at hand, you can get precise, sharp focus with one of these cameras.
