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What is EV


oldham Avatar
oldham 19 198 England
27 May 2020 1:37AM
In the photo gallery exif information a listing is EV what is this please
clicknimagine Avatar
clicknimagine Plus
13 1.3k 105 India
27 May 2020 5:44AM
You can find here...
mrswoolybill Avatar
mrswoolybill Plus
16 4.6k 2635 United Kingdom
27 May 2020 6:42AM
AKA exposure compensation, you use a Nikon D3400, it's controlled by the little +/- button next to the shutter release.
Philh04 Avatar
Philh04 18 2.3k United Kingdom
27 May 2020 9:28AM

Quote:AKA exposure compensation, you use a Nikon D3400, it's controlled by the little +/- button next to the shutter release.

Technically no, EV is Exposure Value and is used as a method of expressing the amount of exposure Compensation . EV is explained nicely in the link above by clicknimage.
altitude50 Avatar
altitude50 19 23.9k United Kingdom
27 May 2020 9:44AM
Ev shown on Weston exposure meter. It was sometimes shown on manual film cameras next to the shutter speed and aperture dials.

21670_1590569050.jpg

Philh04 Avatar
Philh04 18 2.3k United Kingdom
27 May 2020 9:50AM

Quote: It was sometimes shown on manual film cameras next to the shutter speed and aperture dials.

Indeed, Hasselblad lenses would lock to a certain value so that you could quickly choose any of the shutter speed/aperture values associated with that particular EV.
mattw Avatar
mattw 19 5.2k 10 United Kingdom
27 May 2020 10:30AM
The 'EV' shown on here IS the amount of Exposure Compensation used when taking the photo, Not the total 'Exposure Value' of the base exposure.
mrswoolybill Avatar
mrswoolybill Plus
16 4.6k 2635 United Kingdom
27 May 2020 11:24AM

Quote:Quote:AKA exposure compensation, you use a Nikon D3400, it's controlled by the little +/- button next to the shutter release.


Technically no, EV is Exposure Value and is used as a method of expressing the amount of exposure Compensation . EV is explained nicely in the link above by clicknimage.


I was referring to the way the term is used in the site's Exif column, which is what I understood the OP to be asking about.
JackAllTog Avatar
JackAllTog Plus
14 6.4k 58 United Kingdom
27 May 2020 2:33PM
I'll often shoot -1/3 or -2/3 EV on Aperture Priority or Shutter Priority . It means that the whole image will be darker than the camera would automatically shoot it. The reason i dial EV down is so that i don't lose highlight detail in areas of the image that are very bright. I can then adjust the image back in Lightroom.

IF you shoot fully manual then EV does not do anything.
Jestertheclown Avatar
Jestertheclown 14 8.8k 255 England
27 May 2020 7:19PM

Quote:The 'EV' shown on here IS the amount of Exposure Compensation

Strictly speaking "EV" does indeed stand for Exposure Value. There's a clue in the name.

Unfortunately, it's another of those terms that's rather lost its way.

Think along the lines of "Shutter speed" which has nothing whatsoever to do with the speed at which the shutter travels.

Or, how many people can't tell the difference between "dpi" and "ppi"?

We'll never change the way in which these terms are (mis)used but it's not a bad idea to understand their real meanings.
JJGEE Avatar
JJGEE 18 8.1k 18 England
28 May 2020 10:18PM

Quote:Think along the lines of "Shutter speed" which has nothing whatsoever to do with the speed at which the shutter travels.

Took me a couple of seconds to catch on to the meaning of what you wrote !
pablophotographer Avatar
pablophotographer 12 2.2k 450
29 May 2020 12:02AM

Quote:
Quote:Think along the lines of "Shutter speed" which has nothing whatsoever to do with the speed at which the shutter travels.

Took me a couple of seconds to catch on to the meaning of what you wrote !



Hahaha! Nice one. I saw an advert of a shutters store saying "styles that fit all budgets".

EV stands for Exposure Value not for Exporting Video.
peterjones Avatar
peterjones 21 5.2k 1 United Kingdom
30 May 2020 9:37AM
Exposure Value is simply a figure that represents a combination of a shutter speed and aperture; 1/30 @ f/8 would have exactly the same EV as I/60 @ f/5.6 and again exactly the same value as 1/125 @ f4; all three combinations give exactly the same exposure value; I don't know anybody who uses the concept of EV; I have been into photography for more years than I care to admit and have never consciously given EV a thought.

if you really must you can demonstrate the concept yourself if your camera has Program mode; if set to P you can adjust the aperture and the shutter speed will change to compensate thus keeping the same EV at all combinations.

As "Philh04" said you could do the same with old Hasseblad lenses; the link by "clicknimage" offers a good explanation.

Not to be confused with exposure compensation when you tell the camera it is a liar and a fibber and override the camera's exposure settings with the +/- setting.

KISS .......

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