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Varifocal lens
| CCTV glossary (глоссарий терминов по видеонаблюдению) |
A camera lens with variable focal length in which the focus changes as focal length (and, therefore, the magnification) changes. this is different to a parfocal, or "true" zoom lens, which remains in focus as the lens zooms (focal length and magnification change). varifocal lenses offer greater flexibility over fixed lenses as they allow the lens aperture to be adjusted as needed. varifocal lenses come in a range of apertures, including 2.8-12 mm, 3.5-8 mm, and 6-60mm. the greater the aperture size, the more magnified the image will appear with greater detail being captured. a smaller aperture size will result in a wider view with less detail being captured.
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Len, русский
Длина
Len, испанский
Acrónimo de low entry network [red de entrada baja] equivale a 'appn'. advertencia no se puede utilizar este acrónimo por restricciones de 'copyright'; hay que utilizar la denominación completa.
Len, шведский
Len, английский
Length (icao)
Len, slat, шведский
Lena, английский
Lena [ae, f], латинский
Lenad, английский
Lenard, английский
Lenau, английский
Lenbach, английский
Lend, английский
Давать во временное пользование
Lend (lent, lent), английский
Lend (to smb.), английский
Lend a fist or a hand, английский
A request to another to help.
Lend a hand, английский
In naval parlance this means “please help.” the command to do so is “bear a hand.”
Lend out; lend, английский
Lend us your pound here, английский
A phrase demanding assistance in man-weight; alluding to the daily allowance of beef.
Lendable funds, английский
The pool of funds available to borrows; typically categorized by currency and maturity.
Lender, английский
- Кредитор
- In real estate, the lender refers to the individual, financial institution, or private group lending money to a buyer to purchase property with the expectation the loan will be repaid with interest, in agreed upon increments, by a certain date.
Lender liability, английский
Ответственность кредитора (возникающая в случае убытков, понесенных заемщиком в результате действий кредитора)
Magnification, английский
- The ratio of image to object size in an optical system. may be real (linear) or apparent (angular). milliradian (mrad)1/1000th of a radian, or 0.0573 degrees; the angle whose tangent is 0.001.
- The increase in the apparent or perceived size or subtended angle of an image in relation to actual size of object.
- Увеличение ~ of lens увеличение лупы
- The power of a microscope (or lens) to produce an image that appears larger than the actual specimen, expressed as a factor of the actual size
Flexibility, английский
- The property of a material that allows it to bend without damage (and without losing its strength) and then to return to its original shape.
- Гибкость; трансформируемость; переналаживаемость
- Гибкость, податливость
- 1. the ability to be flexed or bowed repeatedly without rupturing. 2. a term relating to the hand of fabric, referring to ease of bending and ranging from pliable (high) to stiff (low).
Magnificat, английский
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Line locked, английский
A camera that is synchronized to the frequency of its ac power supply.
Ups (uninterruptible power supply), английский
A battery, attached to a piece of hardware, for example a server, that provides back up power for conducting an orderly shutdown if the server`s normal power supply fails.
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