telephoto digital camera!

telephoto digital camera

Comprehensive Analysis

1) "Telephoto" -- As to telephoto digital camera 1tele·pho·to Pronunciation: "te-l&-'fO-(")tO Function: adjective : being a camera lens system designed to give a large image of a distant object; also : relating to or being photography in which a telephoto lens is used Pronunciation Symbols

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500 mm telephoto lens with extension tube.

In photography and cinematography, a telephoto lens is a specific construction of a long focal length photographic lens that places its optical centre outside of its physical construction, such that the entire lens assembly is between the optical centre and the focal plane. A regular lens of a focal length that is longer than what is considered a normal lens is not necessarily a telephoto lens. A telephoto lens has to incorporate a special lens group known as a telephoto group (see below); nevertheless, non-telephoto lenses of long focal length are often informally referred to as telephoto lenses. The angle of view created by a telephoto lens is the same as that created by an ordinary lens of the same specified focal length.

If a camera lens were to be constructed from a single lens of 200 mm focal length, then when the lens is focused on an object at infinity, the lens will be 200 mm away from the focal plane where the film or sensor is. The centre of the lens is referred to as the optical centre of the lens. Even constructing the lens out of multiple elements in the regular fashion, usually to eliminate aberrations, will still have the optical centre within the construction.

As the focal length of such lenses increases the physical length of lens becomes inconveniently long. But such lenses are not telephoto lenses, no matter how extreme the focal length. They are simply known as long focal length lenses.

The diagram to the right shows the basic construction of a telephoto lens. It consists o..."

2) "Digital" -- As to telephoto digital camera

A digital system is one that uses discrete values (often electrical voltages), especially those representable as binary numbers, or non-numeric symbols such as letters or icons, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (ie, as in an analog system).

The distinction of "digital" versus "analog" can refer to method of input, data storage and transfer, or the internal working of a device. The word comes from the same source as the word digit and digitus: the Latin word for finger (counting on the fingers) as these are used for discrete counting.

The word digital is most commonly used in computing and electronics, especially where real-world information is converted to binary numeric form as in digital audio and digital photography. Such data-carrying signals carry one of two electronic or optical pulses, logic 1 (pulse present) or 0 (pulse absent). The term is often meant by the prefix "e-", as in e-mail and ebook, even though not all electronic systems are digital.

When data are transmitted, or indeed handled at all, a certain amount of noise enters into the signal. This can have several causes: data transmitted by radio may be received inaccurately, suffer interference from other radio sources, or pick up background radio noise from the rest of the universe. Microphones pick up everything — signal as well as background noise — without discriminating between signal and noise, so when audio is encoded digitally, it already includes noise.

Electric pulses being sent via wires are attenuated by the resistance of the wire, and changed by its capacitance or inductance. Temperature variations can increase or reduce these effects. While digital transmissions are also degraded, slight variations do not matter since they are ignored when the signal is received. With a..."

3) "Camera" -- As to telephoto digital camera

This is the article about the photographing device. For other uses, see camera (disambiguation).

A camera is a device used to capture images, as still photographs or as sequences of moving images (movies or videos).

The name is derived from camera obscura, Latin for "dark chamber", an early mechanism for projecting images, in which an entire room functioned much as a real-time imaging system.

Cameras may work with the visual spectrum or other portions of the electromagnetic spectrum.

A camera consists of some kind of enclosed hollow, with an opening or aperture at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. Most cameras have a lens positioned in front of the camera's opening to gather the incoming light and to focus the image, or part of the image, on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.

The size of the aperture and the brightness of the scene control the amount of light that enters the camera during a period of time, and the shutter controls the length of time that the light hits the recording surface. For example, in lower light situations, the shutter speed should be slower (longer time spent open) to allow the film to capture what little light is present.

Due to the optical properties of camera lenses, only objects within a certain range of distances from the camera will be reproduced clearly. The process of adjusting this range is known as changing the camera's focus. There are various ways of focusing a camera accurately. The simplest cameras have fixed focus and use a small aperture and wide-angle lens to ensure that everything within a certain range of distance from the lens (usually around 3 metres (10 feet) to infinity) is in reasonable focus. This is usua..."

Further Data On Term for telephoto digital camera

Regularly Occuring Typos with telephoto digital camera include: etlephoto tleephoto teelphoto telpehoto telehpoto telepohto telephtoo telephoot elephoto tlephoto teephoto telphoto telehoto telepoto telephto telephoo telephot relephoto felephoto gelephoto yelephoto twlephoto tslephoto tdlephoto trlephoto talephoto tilephoto tolephoto tulephoto tekephoto teoephoto tepephoto telwphoto telsphoto teldphoto telrphoto telaphoto teliphoto telophoto teluphoto teleohoto telepyoto telepgoto telepjoto telepboto telepnoto telephito telephkto telephlto telephpto telephato telepheto telephuto telephoro telephofo telephogo telephoyo telephoti telephotk telephotl telephotp telephota telephote telephotu idgital dgiital diigtal digtial digiatl digitla igital dgital diital digtal digial digitl digita sigital xigital cigital figital eigital tigital dugital dkgital dogital dagital degital dugital ditital difital divital dibital dihital dijital digutal digktal digotal digatal digetal digutal digiral digifal digigal digiyal digitql digitsl digitzl digitel digitil digitol digitul digitak digitao digitap acmera cmaera caemra camrea camear amera cmera caera camra camea camer xamera damera famera vamera kamera cqmera csmera czmera cemera cimera comera cumera canera cajera cakera camwra camsra camdra camrra camara camira camora camura cameea cameda camefa cameta camerq camers camerz camere cameri camero cameru

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