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Focal points refer to specific areas or elements within a space that draw attention and create visual interest. They are used to guide the viewer's eyes and emphasize certain features or aspects of a design. In photography, focal points are where the viewer's gaze naturally lands within an image.
A lens has two focal points -- one on each side of the lens. These focal points are where parallel rays of light converge after passing through the lens.
no dip sherlock
The distance from the center of a lens to one of its focal points is the focal length of the lens.
Wide-angle lenses have a short focal length. The focal character of my short story is a ten-year-old boy.
In art a composition's focal point is actually called the focal point. There may be multiple focal points, in which case the main one is the focal point and the others are secondary focal points. You can recognize the focal point because it is somehow set apart from the rest of the composition.
narthex...
An ellipse have two focal points.
the foci (2 focal points) and the distance between the vertices.
Earth's orbit is an ellipse; the Sun is at one of the ellipses focal points. (The other focal point has no astronomical significance.)
The near and far focal points refer to distances at which light rays are brought into focus by a lens or mirror. The near focal point is where light rays converge when the object is closer than the focal length. The far focal point is where light rays converge when the object is beyond the focal length.
Earth's orbit is an ellipse; the Sun is at one of the ellipses focal points. (The other focal point has no astronomical significance.)