The lens (ideal to view a 3D configurator) is described by its focal length, which is the distance in millimeters (mm) between the lens and the image it forms on the sensor or film when it is focused to infinitely sharp (the widest possible visual distance). The focus length determines the angle of view or how much a lens sees that controls which part of a scene is captured. The focus length of a lens determines how wide or narrow its perspective is. A lens with a wide perspective provides a wide view, while a lens with a medium perspective provides a normal view of a subject. A narrow, telephotographic view can bring details of a subject very close.
The focus lengths are measured in millimeters. Some lenses have a field of view that is fixed to a certain focus length, e.g. 18 mm, 50 mm, 105 mm and 200 mm. These are called prime lenses or sometimes fixed focus length lenses. Other lenses have the ability to move lens elements to create a continuous focus length range. These are called zoom lenses. A typical zoom lens can change the magnification from an 18 mm wide view to a 200 mm telephoto lens perspective, taking into account the fields of view of the 18 mm, 50 mm, 105 mm, and 200 mm primary lenses listed above, as well as all intermediate focus lengths.
“Some lenses have a field of view fixed at a specific focus length, e.g. 18 mm, 50 mm, 105 mm, or 200 mm.
The most common focus lengths can be divided into general categories, although adjacent groups may also overlap. The following list shows the approximate focus lengths of the lenses used, with a small overlap of the focus lengths between some categories.
Ultra-wide angle lenses: 10-15 mm.
These lenses capture the widest view of a scene as a standard lens by making the subject appear smaller than with a normal lens. It offers an enormous depth of field that allows it to come very close to a subject and create exaggerated proportions, unusual perspectives due to distortion, and an intimate viewing experience that can be consciously used to create visual interest.
Wide angle lenses: 16-28 mm.
These lenses are used for most landscape, architectural and indoor shots or for all subjects with a large field of view. A wide-angle lens is convenient for large scenes and places where you can’t move back far enough to photograph the entire scene.
Normal lenses: 28-40 mm.
The most common focus lengths can be divided into general categories, although adjacent groups may also overlap. The following list shows the approximate focus lengths of the lenses used, with a small overlap of the focus lengths between some categories.
Ultra-wide angle lenses: 10-15 mm.
These lenses capture the widest view of a scene as a standard lens by making the subject appear smaller than with a normal lens. It offers an enormous depth of field that allows it to come very close to a subject and create exaggerated proportions, unusual perspectives due to distortion, and an intimate viewing experience that can be consciously used to create visual interest.
Wide angle lenses: 16-28 mm.
These lenses are used for most landscape, architectural and indoor shots or for all subjects with a large field of view. A wide-angle lens is convenient for large scenes and places where you can’t move back far enough to photograph the entire scene.
Normal lenses: 28-40 mm.
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