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Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D90/D80/D70 (Public) topic #251815
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Subject: "RE: Aperture/Shutter Priority and EV" Previous topic | Next topic
Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library Nikonian since 15th Mar 2009Fri 14-Sep-12 07:10 PM
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#10. "RE: Aperture/Shutter Priority and EV"
In response to In response to 2


Hatboro, Pa, US
          


>
>"BUT, in MANUAL mode, the EV is separate. What is it that
>the EV does when not changing shutter speed or aperture?
>Computer wizardry and magic? Does it add more noise?"
>
>So, then in this case is the exposure compensation different
>than EV?
>
>Thanks again.
>Dave

EV ( exposure value) is a number which is determined by light intensity as measured by a light meter and the ISO value of either the film being used or the set sensitivity of the digital camera. It is just a number and it cannot change.

Now that we have this number, whatever it is, it defines the exact aperture opening and shutter speed which will properly expose the photo. This number can be maintained over many combinations of aperture and shutter speed and give the exact same exposure. When you are in Aperture Priority mode or Shutter priority mode the only thing the camera is doing is giving you a choice of which combination to use. The EV is still the same number.

Now if you want to make your photo lighter or darker what you need to do is compensate the exposure by using the EC button and dial in the + or - compensation you want.

You did not change the EV, that is controlled by the light intensity and ISO rating. You over rode the EV value. In effect you are disregarding what the light meter is telling you for whatever reason.

Len

Visit my Nikonians gallery.

  

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This is a hot, active topic!Aperture/Shutter Priority and EV [View all] , DBarnes Silver Member, Tue 11-Sep-12 06:51 PM
 
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aolander Silver Member
11th Sep 2012
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Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
12th Sep 2012
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aolander Silver Member
12th Sep 2012
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DBarnes Silver Member
14th Sep 2012
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briantilley Moderator Deep knowledge of bodies and lens; high level photography skills
14th Sep 2012
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          Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
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               Reply message RE: Aperture/Shutter Priority and EV
briantilley Moderator Deep knowledge of bodies and lens; high level photography skills
14th Sep 2012
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                    Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
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kentak Silver Member
15th Sep 2012
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kentak Silver Member
14th Sep 2012
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DBarnes Silver Member
14th Sep 2012
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          Reply message RE: Aperture/Shutter Priority and EV
aolander Silver Member
14th Sep 2012
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               Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
13
     Reply message RE: Aperture/Shutter Priority and EV
Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library
14th Sep 2012
10
Reply message RE: Aperture/Shutter Priority and EV
Arkayem Moderator Awarded for his high level skills in flash photography
14th Sep 2012
8
Reply message RE: Aperture/Shutter Priority and EV
Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library
14th Sep 2012
9
Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
15
Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
14
     Reply message RE: Aperture/Shutter Priority and EV
aolander Silver Member
14th Sep 2012
17
          Reply message RE: Aperture/Shutter Priority and EV
Arkayem Moderator Awarded for his high level skills in flash photography
14th Sep 2012
19
          Reply message RE: Aperture/Shutter Priority and EV
DBarnes Silver Member
14th Sep 2012
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Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D90/D80/D70 (Public) topic #251815 Previous topic | Next topic