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Fixed-focus lens

Index Fixed-focus lens

A photographic lens for which the focus is not adjustable is called a fixed-focus lens or sometimes focus-free. [1]

25 relations: Aerial photography, Angle of view, Aperture, Autofocus, Camera, Camera lens, Camera phone, Charge-coupled device, Circle of confusion, Close-up, Closed-circuit television, Depth of field, Disposable camera, Focus (optics), Hyperfocal distance, Image sensor, Lens speed, Light-field camera, Manual focus, Point-and-shoot camera, Prime lens, Telephoto lens, Viewfinder, Webcam, Wide-angle lens.

Aerial photography

Aerial photography (or airborne imagery) is the taking of photographs from an aircraft or other flying object.

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Angle of view

In photography, angle of view (AOV) describes the angular extent of a given scene that is imaged by a camera.

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Aperture

In optics, an aperture is a hole or an opening through which light travels.

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Autofocus

An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area.

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Camera

A camera is an optical instrument for recording or capturing images, which may be stored locally, transmitted to another location, or both.

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Camera lens

A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.

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Camera phone

A camera phone is a mobile phone which is able to capture photographs and often record video using one or more built-in digital cameras.

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Charge-coupled device

A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.

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Circle of confusion

In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source.

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Close-up

A close up or closeup in filmmaking, television production, still photography and the comic strip medium is a type of shot, which tightly frames a person or an object.

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Closed-circuit television

Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.

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Depth of field

In optics, particularly as it relates to film and photography, the optical phenomenon known as depth of field (DOF), is the distance about the Plane of Focus (POF) where objects appear acceptably sharp in an image.

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Disposable camera

Disposable or single-use camera is a simple box camera meant to be used once.

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Focus (optics)

In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge.

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Hyperfocal distance

In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an "acceptable" focus.

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Image sensor

An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.

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Lens speed

Lens speed refers to the maximum aperture diameter, or minimum f-number, of a photographic lens.

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Light-field camera

A light field camera, also known as plenoptic camera, captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the direction that the light rays are traveling in space.

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Manual focus

In the field of photography, a manual focus camera is one in which the user has to adjust the focus of the lens by hand.

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Point-and-shoot camera

A point-and-shoot camera, also known as compact camera, is a still camera designed primarily for simple operation.

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Prime lens

In film and photography, a prime lens is a fixed focal length photographic lens (as opposed to a zoom lens, typically with a maximum aperture from f2.8 to f1.2. The term can also mean the primary lens in a combination lens system. Confusion between these two meanings can occur if context doesn't make the interpretation clear. People sometimes use alternate terms—primary focal length, fixed focal length, or FFL to avoid ambiguity.

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Telephoto lens

In photography and cinematography, a telephoto lens is a specific type of a long-focus lens in which the physical length of the lens is shorter than the focal length.

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Viewfinder

In photography, a viewfinder is what the photographer looks through to compose, and, in many cases, to focus the picture.

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Webcam

A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.

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Wide-angle lens

In photography and cinematography, a wide-angle lens refers to a lens whose focal length is substantially smaller than the focal length of a normal lens for a given film plane.

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Redirects here:

EDOF, Fixed focus, Fixed focus lens, Fixed focusing, Fixed-focus, Fixfocus, Focus free lens, Focus-free.

References

[1] https://en.wikipedia.org/wiki/Fixed-focus_lens

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