In optics and photography, infinity focus is the state where a lens or other optical device forms an image of an object an infinite distance away. Photography (fә'tɒgrәfi or fә'tɑːgrәfi (from Greek φωτο and γραφία is the process and Art of recording pictures by means of capturing A lens is an optical device with perfect or approximate Axial symmetry which transmits and refracts Light, converging or diverging Infinity (symbolically represented with ∞) comes from the Latin infinitas or "unboundedness This corresponds to the point of focus for parallel rays. In Optics, a ray is an idealized narrow Beam of light. Rays are used to model the propagation of Light through an optical system by dividing the real light The image is formed at the focal point of the lens. An image (from Latin imago) or picture is an artifact usually two-dimensional that has a similar appearance to some subject &mdashusually In Geometrical optics, a focus, also called an image point, is the point where Light rays originating from a point on the object converge.
In practice, not all photographic lenses are capable of achieving infinity focus. A photographic lens (also known as objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with A lens used with an adaptor for close-up focusing, for example, may not be able to focus to infinity.
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