Ev

RO: Ev (exposure value) EN: Ev (exposure values)

Fotografie digitala si IT

Combination of a camera exposure time and lens aperture giving the same sensor exposure. By convention, EV is expressed on a logarithm 2 basis, so doubling the sensor exposure corresponds to EV+1.
DXO Glossary

84%

Accuracy

Ev

Exposure Value is a number that represents the various different combinations of aperture and shutter speed that can create the same exposure effect.

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100%

Accuracy

Ev

Exposure Value. The ability to override the auto exposure system to under or over expose the image.

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81%

Accuracy

Ev

Exposure value. Methodof quantifying scene brightness. Most of these value apply to metering cells, howhigh or low eg. a metering that can handles from EV1-EV21 means a metering systemthat can measure brightness level from just above the light level of a candle lightto a brightly sunlight scene on a beach. Camera metering can handle more weakly ona spot meter than, say, a center weighted average metering system. EV is commonlyused in black & White photographic process. AtISO 100, the combination of a one-second shutter speed and an aperture of F1.4 isdefined as EV1. The camera may be used only within the EV range of the exposure meter.For example, the exposure metering range s from EV0 to EV20 can be used on a camera,means the camera s meter can handle broader range of exposure latitude.

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71%

Accuracy

Ev

Abbreviation for Exposure Value (see below).

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83%

Accuracy

Ev

Exposure Value. A number that represents available combinations of shutter speed and aperture offering the same exposure effect when scene brightness remains the same.

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96%

Accuracy

Ev

Exposure Value; A number that represents available combinations of shutter speed and aperture offering the same exposure effect when scene brightness remains the same. Each EV number can be applied to various shutter speed and aperture combinations.

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96%

Accuracy

Ev (exposure value)

Combination of aperture and shutter speed, 1 EV is 1 stop. A 3EV difference, for example, is combination of aperture setting and shutter speed used to change exposure by 3 stops.

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81%

Accuracy

Ev (exposure value)

Numar care se refera la cantitatea de lumina dintr-o anumita expunere. Uneori exprima si o combinatie de senzitivitate (ISO), diafragma si timp de expunere.

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89%

Accuracy

Ev (exposure value)

Numar care se refera la cantitatea de lumina dintr-o anumita expunere. Uneori exprima si o combinatie de senzitivitate (ISO), diafragma si timp de expunere. .

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97%

Accuracy

Ev (exposure value)

The combined shutter and aperture values used on older cameras and light meters. .

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