digital telephoto lens!

digital telephoto lens

Comprehensive Analysis

1) "Digital" -- As to digital telephoto lens dig·i·tal Pronunciation: 'di-j&-t&l Function: adjective Etymology: Latin digitalis 1 : of or relating to the fingers or toes <digital dexterity> 2 : done with a finger <a digital rectal examination> 3 : of, relating to, or using calculation by numerical methods or by discrete units 4 : of, relating to, or being data in the form of especially binary digits <digital images> <a digital readout>; especially : of, relating to, or employing digital communications signals <a digital broadcast> -- compare ANALOG 2 5 : providing a readout in numerical digits <a digital voltmeter> 6 : relating to an audio recording method in which sound waves are represented digitally (as on magnetic tape) so that in the recording wow and flutter are eliminated and background noise is reduced 7 : ELECTRONIC <digital devices>; also : characterized by electronic and especially computerized technology <the digital age> - dig·i·tal·ly /-t&l-E/ adverb Pronunciation Symbols 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. 1 Digital noise 2 Symbol to digital conversion 3 Historical digital systems 4 See also 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..." 2) "Telephoto" -- As to digital telephoto lens 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

Photography Portal

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..."

3) "Lens" -- As to digital telephoto lens

A lens can be:

• Lens (optics), an optical element. See also Category:Lenses, and:
  • Lens (anatomy), a part of the eye
  • Corrective lens for vision correction
  • Photographic lens, a special type of lens used in a camera. See also Category:Photographic lenses
  • Sunglasses' lenses, which are light-attenuating elements
  • Hence:
    • Gravitational lens, an astronomical effect
    • Electrostatic lens, a device used to focus or collimate electron beams
    • a metaphor for a point of view
    • a science-fictional alien device in E. E. Smith's Lensman series, which gives its bearer telepathic and other abilities
• Lens (genus), the genus of the lentil plant
• Lens (geometry), a geometric shape formed from two arcs
• Lens (geology), a body of ore or rock that is thick in the middle and thin at the edges

There are also places called Lens:

• Lens, Pas-de-Calais, France
  • RC Lens, its football (soccer) club
• Lens, Belgium
• Lens, Valais, Switzerland

People named Lens include:

• Louis Lens, Flemish rose breeder
• Nicholas Lens, Belgian composer

LENS can be an acronym for:

• Laser Engineered Net Shaping, a rapid prototyping technology capable of building fully-dense metal parts

Further Data On Term for digital telephoto lens

Regularly Occuring Typos with digital telephoto lens include: 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 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 elns lnes lesn ens lns les len kens oens pens lwns lsns ldns lrns lans lins lons luns lebs lehs lejs lems lena lenw lend lenx lenz

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